Exempt Dialer from power restrictions temporarily after missing a call am:...

Exempt Dialer from power restrictions temporarily after missing a call am: a28f97e6 am: 4e26d93a

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/12522321

Change-Id: I6c8c9c12f8082e041dcf18db44ed3185aba6f0f4