gcc: Upgrade to GCC 14.3

gcc: Upgrade to GCC 14.3

GCC 14.3 is a bug-fix release from the GCC 14 branch
containing important fixes for regressions and serious bugs in
GCC 14.2 with more than 211 bugs fixed since the previous release.

https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=14.3

Dropped the below patches:
0026-gcc-Fix-c-tweak-for-Wrange-loop-construct.patch
https://github.com/gcc-mirror/gcc/commit/a9f88741a99ba09b29cc0021499c63ca445393f0

0027-gcc-backport-patch-to-fix-data-relocation-to-ENDBR-s.patch
https://github.com/gcc-mirror/gcc/commit/aa4cd614456de65ee3417acb83c6cff0640144e9

0028-fix-incorrect-preprocessor-line-numbers.patch
https://github.com/gcc-mirror/gcc/commit/8cbe033a8a88fe6437cc5d343ae0ddf8dd3455c8

0001-arm-Fix-LDRD-register-overlap-PR117675.patch
https://github.com/gcc-mirror/gcc/commit/9366c328518766d896155388726055624716c0af

gcc.git-ab884fffe3fc82a710bea66ad651720d71c938b8.patch
https://github.com/gcc-mirror/gcc/commit/ab884fffe3fc82a710bea66ad651720d71c938b8

Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>