Merge "ashmem: Only use memfd if the kernel has ashmem-memfd compat support"...

Merge "ashmem: Only use memfd if the kernel has ashmem-memfd compat support" into main am: 712feb76

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3433527



Change-Id: I68b88abf956f1c4c35060ff6feedc09b22f1afcb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>