Hide some noisy Metalava issues

Changes https://r.android.com/3106478 and https://r.android.com/3110137
unintentionally started reporting some previously hidden issues as
error when new. This change hides those issues again.

Bug: 343157584
Test: m checkapi before and after
Change-Id: I2e04c919ce5c4f2b39fab65afd13bc31725031f0