Upgrade musl to v1.2.4 am: cb3779c7f0 am: fab0604c72 am: 35c32a3802 am: de1aff4a6d am: 9ddeabe5ee

Original change: https://android-review.googlesource.com/c/platform/external/musl/+/2628409

Change-Id: Ifebfab39fcd4d66e5a824f5280d659d4bf0e1818
Signed-off-by: Automerger Merge Worker <[email protected]>