[automerger skipped] Check the the reason of the subscribe request to deter...

[automerger skipped] Check the the reason of the subscribe request to deter whether client should retry or not. am: 2ecae17d -s ours

am skip reason: Merged-In I2576cd4601a61944b3c8f4f62096622c530d855a with SHA-1 470c9b3c is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/net/ims/+/14622813

Change-Id: I7e1e553ed580aa1c72e5b62e41368224c95f3cdf