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

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

Change-Id: I31363fa014137e6d46f8c78ed18294da8cc199be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>