Sync with upstream branch release/2.34/master
    
    Upstream commit: 55640ed3fde48360a8e8083be4843bd2dc7cecfe
    
    - i386: Regenerate ulps
    - linux: Fix missing internal 64 bit time_t stat usage
    - x86: Optimize L(less_vec) case in memcmp-evex-movbe.S
    - x86: Don't set Prefer_No_AVX512 for processors with AVX512 and AVX-VNNI
    - x86-64: Use notl in EVEX strcmp [BZ #28646]
    - x86: Shrink memcmp-sse4.S code size
    - x86: Double size of ERMS rep_movsb_threshold in dl-cacheinfo.h
    - x86: Optimize memmove-vec-unaligned-erms.S
    - x86-64: Replace movzx with movzbl
    - x86-64: Remove Prefer_AVX2_STRCMP
    - x86-64: Improve EVEX strcmp with masked load
    - x86: Replace sse2 instructions with avx in memcmp-evex-movbe.S
    - x86: Optimize memset-vec-unaligned-erms.S
    - x86: Optimize memcmp-evex-movbe.S for frontend behavior and size
    - x86: Modify ENTRY in sysdep.h so that p2align can be specified
    - x86-64: Optimize load of all bits set into ZMM register [BZ #28252]
    - scripts/glibcelf.py: Mark as UNSUPPORTED on Python 3.5 and earlier
    - dlfcn: Do not use rtld_active () to determine ld.so state (bug 29078)
    - INSTALL: Rephrase -with-default-link documentation
    - misc: Fix rare fortify crash on wchar funcs. [BZ 29030]
    - Default to --with-default-link=no (bug 25812)
    - scripts: Add glibcelf.py module