Merge "Allow call forwarding number with prefixes to be dialed while on IMS roaming" am: 17c583fbce am: 759853ba37 am: 4741ad7efa am: bd8a460d04

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/1392940

Change-Id: Iccf6d6107b73944333e1bf963dbb0a5d95c3a789