Merge "[GWP-ASan] Fix bugs in realloc()." am: a3accda0c7 am: b9032bf46e

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2061827

Change-Id: Ia868b33ad69d3000199707262c3f339247c0c0e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>