GCC 10.3 Bugfix 1 (#8393)

Fixes a hard-to-track bug in GCC 10.x.
earlephilhower/newlib-xtensa#19
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102115

GCC 10.3 had an issue with addressing constant integer literals which would
result in crazy offsets being used and random crashes in production.
Update with an upstream GCC 11 bugfix by @jjsuwa-sys3175
earlephilhower/esp-quick-toolchain#31
https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=dcb2873cd32b263643bfd9d1298b35d6cd028f0a

Author: earlephilhower