Radio: get service by value.

Get strong pointer to service interface by value and not reference to
prevent race conditions where the service pointer can be cleared
by another thread while in use.

Bug: 30907212
Change-Id: Iae838b3b672562c1d0cd63968399a6bfdda7f5ab
(cherry picked from commit 28a0e9ec74e5192aacffb279c80619ef284062b0)
2 files changed