[automerger skipped] Merge "Added javadoc to apn retry \ throttling related...

[automerger skipped] Merge "Added javadoc to apn retry \ throttling related methods" am: 89db74b5 am: c7e3e264 am: fcec1510 -s ours

am skip reason: Change-Id I84c7845343a08d725764cf4a5777f720b8f6d0da with SHA-1 9a484da6 is in history

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1598496

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I5304493fe02f2565f67ea89d0853077d5869ee3a