Allow carrier-privileged apps to access voicemail provider.

Bug: 70041899
Test: TreeHugger + tests in CL topic
Change-Id: Icd80caa6f755f549f2433ac4dcacb4a77c962077
Merged-In: Icd80caa6f755f549f2433ac4dcacb4a77c962077
(cherry picked from commit 9c57007fb2e6bbb3d0303320ce6938751240c1c7)
7 files changed