Add configuration to enable/disable force iwlan mms feature am: e26ad00c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/28141635



Change-Id: I5daa14bbf51c4eb9fc891c843b8958eea1dfb74b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>