LTS Refresh: Merge upto 6a122d2c907a3fe5fa9215ce7a5c989a17f785c2 (buildnumber: 16108.534.0) from main-R89-cos-5.4 to release-R89-cos-5.4.

BUG=b/183132099,b/191344972,b/192576323,b/196271951,b/196272154,b/196446629,b/179882421,b/190029115,b/197542457,b/197542516,b/197542572
TEST=presubmit
RELEASE_NOTE=LTS Refresh from main-R89-cos-5.4 to release-R89-cos-5.4

Signed-off-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Change-Id: I14ec8bc5dd0e282e52903739ced37ddf31db3148