OWNERS: master -> main

Change-Id: I77e5c821008a6acfb273b8dfb36608659b13c996
diff --git a/OWNERS b/OWNERS
index 61b3e45..e434a1c 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,4 +1,4 @@
 per-file powerhint-*.json = jychen@google.com,jenhaochen@google.com,wvw@google.com,joaodias@google.com
 
 # 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:master:/OWNERS
+per-file *.mk,*/BoardConfig.mk=file:device/google/gs-common:main:/OWNERS