[GWP-ASan] Add aligned allocations. am: 89447be18b am: 4590e24223

Original change: https://android-review.googlesource.com/c/platform/external/gwp_asan/+/1580768

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib5a0ec98127e43ed9cb650c5334287f702b24d71