Fixed IMS handover behavior on roaming network am: e8ccf210

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/2095847



Change-Id: Iab272f73e38d03846f8e69ca4002474e6c44a9be
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>