glibc: stable 2.35 branch updates

glibc: stable 2.35 branch updates

git log --oneline a66bc3941ff298e474d5f02d0c3303401951141f..4e50046821f05ada5f14c76803845125ddb3ed7d

4e50046821 (HEAD, origin/release/2.35/master) x86-64: Add GLIBC_ABI_DT_X86_64_PLT [BZ #33212]
c97735cfde elf: Handle ld.so with LOAD segment gaps in _dl_find_object (bug 31943)
96cc65a28a elf: Extract rtld_setup_phdr function from dl_main
e3f04f64fa elf: Do not add a copy of _dl_find_object to libc.so
bfae8bf49c arm: Use _dl_find_object on __gnu_Unwind_Find_exidx (BZ 31405)

Testing Results:
           Before     After   Diff
PASS         4605      4609     +4
XPASS           6         6      0
FAIL          358       356     -2
XFAIL          16        16      0
UNRESOLVED      0         1     +1
UNSUPPORTED   197       197      0

Testcases changes

testcase-name                              before           after

elf/tst-link-map-contiguous-libc(new)        -               PASS
elf/tst-link-map-contiguous-ldso(new)        -               FAIL
elf/check-dt-x86-64-plt(new)                 -               UNRESOLVED
misc/tst-tsearch                            FAIL             PASS
posix/bug-regex24                           FAIL             PASS
string/tst-cmp                              FAIL             PASS

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