Merge "Update docs that pdu session id default is 0" am: b3b0b11de3 am: 9601a7ff2f am: 32518131cc

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1550320

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id32fad1b3b1ad74a169c11613395b3cf955f3144