This change upgrades to the latest portcosmo gcc patch
6728fe1a25185560603ca312a8d4352af2a4e515 which lets us avoid needing to
define __tmpcosmo_FOO constants. We're now using an appropriate binutils
version for GCC 11. The older binutils sometimes wasn't able to print
backtraces, due to not being able to find a .debug_ranges section.
This is breaking change for /opt/cosmos libraries :'( due to this weird
"error: need linked-to section for --gc-sections" that pops up.
Please run `make clean` in the monorepo before rebuilding.
