Auto-sync with upstream branch release/2.43/master

Upstream commit: dae425b554207f7c4599c7fac707ad4c08545674

• posix: Fix stack overflow in wordexp tilde expansion (BZ 34091, CVE-2026-6791) (Adhemerval Zanella)
• resolv: Add test case tst-ns_sprintrr (bug 34033, bug 34069) (Florian Weimer)
• resolv: Fix buffer overreads in ns_sprintrrf (CVE-2026-6238) (Florian Weimer)
• resolv: More types as unknown in ns_sprintrrf (CVE-2026-5435) (Florian Weimer)
• resolv: Check for inet_ntop failure in ns_sprintrrf (Florian Weimer)
• resolv: Improve formatting of unknown records in ns_sprintrrf (Florian Weimer)
• resolv: Fix ns_sprintrrf formatting of class, type values (bug 34289) (Florian Weimer)
• resolv: Declare __p_class_syms, __p_type_syms for internal use (Florian Weimer)
• hppa: Fix missing call to __feraiseexcept (BZ 34306) (John David Anglin)
• arm: Save/restore VFP registers in PLT trampolines (BZ 34144, BZ 15792) (Adhemerval Zanella)
• iconv: Suppress intermediate errors with //TRANSLIT (bug 34236) (Florian Weimer)
• Hurd: restore some SIOC ioctls (Samuel Thibault)
• Hurd: comment ioctls which cannot currently compile (Samuel Thibault)
• Hurd: comment PF_ROUTE/AF_ROUTE defines (Samuel Thibault)
• Hurd: comment PF_LINK/AF_LINK defines (Pino Toscano)
• elf: don't clobber ld.so.conf in tst-glibc-hwcaps-prepend-cache [BZ #34210] (Sam James)

Remove patches already applied upstream: - glibc-RHEL-172425-1.patch - glibc-RHEL-172425-2.patch - glibc-RHEL-172425-3.patch - glibc-RHEL-172425-4.patch