llvm11: Update to 11.0.1 release
Force linkage with the base system's ncurses in lldb and disable
terminfo to avoid untracked dependencies when ncurses is installed from
ports. Ideally we'd also use the base libtinfo, but I have been unable
to find a way to force it to be used.
PR: 252120
Update to 11.0.0rc5.
Add the AVR backend to the list of standard backends which should fix
builds with BE_NATIVE or BE_FREEBSD.
PR: 250029
Reported by: Mohammad S. Babaei
MFH: 2020Q4