Switch makefile owners to MK_OWNERS

Bug: 278167548
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:5f120c3f726c7ecdb4e2766906c54bfdf7ee7345)
Merged-In: I017b43e34f20d85ac204eef211ef2b2a177f8dbb
Change-Id: I017b43e34f20d85ac204eef211ef2b2a177f8dbb
1 file changed