Add getAttributionSource() to mocked context.

TelephonyConnectionServiceTest use a mocked test that will be pass to TelphonyManager, so new context functions use in TelphonyManager that are not defined in the mocked context, need to be defined otherwise the test will fail.

Test: make, cts
Bug: 205326907
Change-Id: I9035b49cf431cc2526b46586e559b8f579ca9c6f
Merged-In: I9035b49cf431cc2526b46586e559b8f579ca9c6f
1 file changed