glibc: update to 2.31 stable tree head
Includes fixes:
$ git log --format="%h %s"
6fdf971c9dbf7dac9bea552113fe4694015bbc4d..
df31c7ca927242d5d4eee97f93a01e23ff47e332
df31c7ca92 iconv: Accept redundant shift sequences in IBM1364 [BZ #26224]
7df507808c sh: Add sh4 fpu Implies folder
8dc7605665 aarch64: Fix DT_AARCH64_VARIANT_PCS handling [BZ #26798]
48cf525f4b x86: Optimizing memcpy for AMD Zen architecture.
8d730cb25a Reversing calculation of __x86_shared_non_temporal_threshold
4bc9918c99 AArch64: Use __memcpy_simd on Neoverse N2/V1
4722d1fb9d [AArch64] Improve integer memcpy
bea507a3f5 AArch64: Rename IS_ARES to IS_NEOVERSE_N1
d0a5b76902 AArch64: Improve backwards memmove performance
24a30c5959 AArch64: Add optimized Q-register memcpy
88db98fa6e AArch64: Align ENTRY to a cacheline
32965a46ce intl: Handle translation output codesets with suffixes [BZ #26383]
Tested on aarch64 target with CI and long running tests.
Signed-off-by: Mikko Rapeli <mikko.rapeli@bmw.de>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
