Add OWNERS for *luts* files

Bug: 377329333
Change-Id: I5a0f6b406a0700ad0e9bbf8407316c98988ea2a8
Test: builds

Author: Sally Qi

include/android/OWNERS

@@ -3,3 +3,6 @@ per-file input.h,keycodes.h = file:platform/frameworks/base:/INPUT_OWNERS
 # Window manager
 per-file surface_control_input_receiver.h = file:platform/frameworks/base:/services/core/java/com/android/server/wm/OWNERS
 per-file input_transfer_token.h = file:platform/frameworks/base:/services/core/java/com/android/server/wm/OWNERS
+
+# CoGS
+per-file *luts* = file:platform/frameworks/base:/graphics/java/android/graphics/OWNERS