Merge "Don't tear down PDN on PS_RESTRICT_ENABLED" into tm-dev am: 3c6f9a30

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/18444292



Change-Id: I255135b3c9f7977e1e54e07dc7b77446b096daf9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>