Merge "Don't tear down PDN on PS_RESTRICT_ENABLED" into tm-dev am: 3c6f9a30 am: b17feddd

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



Change-Id: Ia879075411d903632212dcdc97e7421a1ea185b7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>