Clear calling identity before calling getSubscriptionUserHandle

Bug: 320599071
Bug: 308033518
Test: Sending and receiving SMS/MMS,
      atest FrameworkTelephonyTests,
      atest CtsTelephonyTestCases
Change-Id: I84c74a81207d54f394721918e59eac2d89ef59e2
Merged-In: I84c74a81207d54f394721918e59eac2d89ef59e2
(cherry picked from commit 470051c41afa9846e58ebf230b2ce33236a74939)
1 file changed