[SB] Set up OWNERS file for status bar.

Notifications team should still have OWNERS on their files because their
statusbar/notification/OWNERS file will take precedence.

Fixes: 356619993
Flag: NONE documentation only
Test: NONE
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:97ea67087d0a7a1ba366161f8219bb406c6fdafd)
Merged-In: Iac4b65aafbbe93dd3b527050963273962daf8703
Change-Id: Iac4b65aafbbe93dd3b527050963273962daf8703
3 files changed