devel/volk: update to 3.1.1

- CI fixes
  - Allow for rounding error in float-to-int conversions
  - Allow for rounding error in `volk_32fc_s32f_magnitude_16i`
  - Allow for rounding error in float-to-int interleave
  - Add missing `volk_16_byteswap_u_orc` to puppet
  - Fix 64-bit integer testing
  - Build and test neonv7 protokernels on armv7

- kernels
  - Remove broken sse32 kernels
  - Fix flaky `fm_detect` test
  - Fix flaky `mod_range` test
  - Remove unnecessary volatiles from `volk_32fc_s32f_magnitude_16i`

all: remove explicit versions in USES=python for "3.x+"

The logic in USES=python will automatically convert this to 3.8+ by
itself.

Adjust two ports that only had Python 3.7 mentioned but build fine
on Python 3.8 too.

finance/quickfix: mark BROKEN with PYTHON

libtool: compile:  c++ -DHAVE_CONFIG_H -I. -I../.. -I -I. -I.. -I../.. -I../C++
-DLIBICONV_PLUG -DPYTHON_MAJOR_VERSION=3 -Wno-unused-variable
-Wno-maybe-uninitialized -O2 -pipe -DLIBICONV_PLUG -fstack-protector-strong
-fno-strict-aliasing -DLIBICONV_PLUG -Wall -ansi
-Wno-unused-command-line-argument -Wpointer-arith -Wwrite-strings
-Wno-overloaded-virtual -Wno-deprecated-declarations -Wno-deprecated -std=c++0x
-MT _quickfix_la-QuickfixPython.lo -MD -MP -MF
.deps/_quickfix_la-QuickfixPython.Tpo -c QuickfixPython.cpp  -fPIC -DPIC -o
.libs/_quickfix_la-QuickfixPython.o
warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean
'-Wno-uninitialized'? [-Wunknown-warning-option]
QuickfixPython.cpp:175:11: fatal error: 'Python.h' file not found
          ^~~~~~~~~~
1 warning and 1 error generated.

Reviewed by:	portmgr, vishwin, yuri
Differential Revision:	<https://reviews.freebsd.org/D40568>

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

devel/volk: Update 2.5.0 -> 2.5.1

PR:		261245

devel/volk: Remaining changes from D30700

update to 2.5.0 was committed earlier from the bugzilla PR.

Submitted by:	vishwin (Charlie Li)
Differential Revision:	https://reviews.freebsd.org/D30700

devel/volk: Update 2.2.1 -> 2.5.0

PR:		261245

devel/volk: Fix build on armv7.

This port does not build on armv7 due to inline assembly unsupported by clang.
Fix the build by compiling with gcc on armv7.

PR:		259447
Approved by:	portmgr (build fix blanket)

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

Sanitize COMMENT per Section 5.6 of the FreeBSD Porter's Handbook (part 2).

Add compiler:c++11-lang to USES to fix build on GCC-bsed systems:

  Could NOT find Boost (missing: Boost_INCLUDE_DIR filesystem system) (Required
is at least version "1.35")

Approved by:	portgmr (tier-2 blanket)

- Remove last remnants of gnuradio split
- Remove extraneous += from blind copying of portlint output

## [2.2.1] - 2020-02-24

Hi everyone,

with VOLK 2.2.0, we introduced another AVX rotator bug which is fixed with this
release.
In the process 2 more bugs were identified and fixed. Further, we saw some
documentation improvements.

### Contributors

*  Clayton Smith <argilo@gmail.com>
*  Michael Dickens <michael.dickens@ettus.com>

### Changes

* Fix loop bound in AVX rotator
* Fix out-of-bounds read in AVX2 square dist kernel
* Fix length checks in AVX2 index max kernels
* includes: rearrange attributes to simplify macros Whitespace
* kernels: fix usage in header comments

VOLK is a sub-project of GNU Radio. Please see http://libvolk.org for bug
tracking, documentation, source code, and contact information about VOLK.

VOLK is the Vector-Optimized Library of Kernels. It is a library that
contains kernels of hand-written SIMD code for different mathematical
operations. Since each SIMD architecture can be very different and no
compiler has yet come along to handle vectorization properly or highly
efficiently, VOLK approaches the problem differently.

For each architecture or platform that a developer wishes to vectorize for,
a new proto-kernel is added to VOLK. At runtime, VOLK will select the correct
proto-kernel. In this way, the users of VOLK call a kernel for performing
the operation that is platform/architecture agnostic. This allows us to
write portable SIMD code.

Bleeding edge code can be found in our git repository at
https://www.gnuradio.org/git/volk.git/.