add MRC to list of repos for project specific hooks

BUG=none
TEST="create a CL in MRC repo and check if upload checks require
      BRANCH= tag"
Change-Id: I3a9de8480533800f55c8fecedb2bf786c5d080be
Reviewed-on: https://gerrit.chromium.org/gerrit/30363
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Ready: Puneet Kumar <puneetster@chromium.org>
Tested-by: Puneet Kumar <puneetster@chromium.org>
1 file changed