Merge "gralloc: Remove PAGE_SIZE 4096 usage" into main am: 677aa4b1cb am: 3a0f90c88f am: 312fdb4999 am: 56499e2e8a am: cf3abc49c9

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

Change-Id: Ic98024aaf539b7ce3b0c01b18be7a03854d21053
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>