Merge "string.h: drag in <strings.h> for GNU source as well as BSD." into main am: fb85d77da6 am: 11cb28a291

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2828517

Change-Id: Iaa07eff091f3067537a7411d208bf3917c66a0fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>