Merge "gralloc: Remove PAGE_SIZE 4096 usage" into main am: 677aa4b1cb am: 3a0f90c88f am: 312fdb4999

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/2717653

Change-Id: I6b342e33c29b163cf239e7e2f90865a0d51b2f9b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>