Switch makefile owners to MK_OWNERS am: 314f5ce3ed

Original change: https://android-review.googlesource.com/c/device/google/pantah/+/3106560

Change-Id: Icbe890fd949512601e0a2b967d60feb05d0bcb8d
Signed-off-by: Automerger Merge Worker <[email protected]>