/commits.php is going away

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

sysutils/u-boot-*: Update to 2021.04

Remove # $FreeBSD$ from Makefiles.

sysutils/atf: Update to v2.4

Bump u-boot ports that depends on it.
While here update the metadata and pkg-descr for the allwinner64 family so
u-boot is put in an alternate location that doesn't conflict with GPT
partitions.

Use HTTPS as possible

u-boot: Update to v2019.10

Update u-boot to its latest version.
For RK3399 we now use SPL+TPL from u-boot, no need for RockChip blob.
Remove one efi related patch that isn't needed anymore.

Tested-on: Pine64-LTS, Rock64, Rockpro64, BBB, RPI2, OrangePi One

sysutils/u-boot-firefly-rk3399: Bump portrevision as we now use miniloader

Since we now use the miniloader instead of SPL bump portrevision for this port.

sysutils/u-boot: Update to 2019.07

Remove one patch for RockChip RK3399 that was upstream.
Add a patch for storage api to remove SCSI. Allwinner A20 was converted
to DM_SCSI upstream and we don't have a good way to do what the api code
was doing (only had a brief look). This patch will probably be upstreamed
once I've found a better way. For now this means that you cannot boot from
SCSI drives using ubldr, using loader.efi will still work. Only Allwinner A20
boards are affected by this.

sysutils/u-boot: Update to 2019.04

Beaglebone slave port change its defconfig.
ZYNC related u-boot are broken.

u-boot-firefly-rk3399: Add a u-boot port for this board

This is a ARM64 board with a RockChip RK3399 SoC.

Add support for RK3399 to the u-boot-master port. No METADATA are created
for now as this u-boot is split in two file and we don't support this scheme
yet.
Two patch are needed :
 - One to allow booting u-boot proper from the same source as the DTS (accepted
 and merge upstream)
 - One to have the BL31 (ATF binary) path in a environment variable instead of
 in the source directory (accepted upstream).