Fix PrivacyChip not visible issue

Bug: 281807669
Test: Manual, i.e. posting the following sequence of events (within few milliseconds) to the scheduler and observe the behaviour with and without the fix: Mic in use -> Mic not in use -> Mic in use
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a45e1d045770eaabfdbf0e1212c9eb84caf1d565)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:20ea049a4a52dbc8d4e5ed957a2b6b9aa02a2f34)
Merged-In: I9851e6ed4cb956d0459ef56251eb0ef3210764b8
Change-Id: I9851e6ed4cb956d0459ef56251eb0ef3210764b8