[klibc] malloc: Set errno on failure
Origin: https://git.kernel.org/pub/scm/libs/klibc/klibc.git/commit/?id=
7f6626d12daa2f1efd9953d1f4ba2065348dc5cd
malloc() is specified to set errno = ENOMEM on failure, so do that.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Name 0035-klibc-malloc-Set-errno-on-failure.patch