Merge "Stop respawning serial console if disabled" am: a6b295b9 am:...

Merge "Stop respawning serial console if disabled" am: a6b295b9 am: 270959a3 am: cf060389 am: 1143dde5

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2485621



Change-Id: I2176992089091d879e4c3ce1cd7420c841ffa318
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>