Switch makefile owners to MK_OWNERS am: c5e5680b5f

Original change: https://android-review.googlesource.com/c/device/google/lynx/+/3107857

Change-Id: Ia1771b5a2966a770572e0152ec90ace9c3036bb7
Signed-off-by: Automerger Merge Worker <[email protected]>

OWNERS

@@ -1,4 +1,4 @@
 per-file powerhint.json = [email protected],[email protected],[email protected],[email protected]
 
 # per-file for Pixel device makefiles, see go/pixel-device-mk-owner-checklist for details.
-per-file *.mk,*/BoardConfig.mk=file:device/google/gs-common:main:/OWNERS
+per-file *.mk,*/BoardConfig.mk=file:device/google/gs-common:main:/MK_OWNERS