phase 18.1: update relibc submodule pointer to fork HEAD

Parent was a0f64e4d, fork HEAD is d8ced461 (5 RB commits ahead).
Fixes submodule pointer mismatch from stale gitlink.
This commit is contained in:
2026-07-12 17:35:25 +03:00
parent 792b2c6a9a
commit 2e5cee8d58