Sync with upstream branch release/2.34/master
    
    Upstream commit: 6548a9bdba95b3e1fcdbd85445342467e4b0cd4f
    
    - Avoid warning: overriding recipe for .../tst-ro-dynamic-mod.so
    - ld.so: Initialize bootstrap_map.l_ld_readonly [BZ #28340]
    - ld.so: Replace DL_RO_DYN_SECTION with dl_relocate_ld [BZ #28340]
    - Handle NULL input to malloc_usable_size [BZ #28506]
    - elf: Avoid deadlock between pthread_create and ctors [BZ #28357]
    - timex: Use 64-bit fields on 32-bit TIMESIZE=64 systems (BZ #28469)
    - y2038: Use a common definition for stat for sparc32
    - elf: Replace nsid with args.nsid [BZ #27609]
    - S390: Add PCI_MIO and SIE HWCAPs
    - support: Also return fd when it is 0