Add OWNERS file for BaseBroadcastQueueTest.

Bug: n/a
Test: n/a
Flag: EXEMPT owners update
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:bb4e939ff6c4f0379131d2de68a4c3e7719b7214)
Merged-In: I8c94021f992921ea14c8c44c6063b387ac437166
Change-Id: I8c94021f992921ea14c8c44c6063b387ac437166
1 file changed