Fix TelephonyRegistryTest failures in HSUM mode

This CL fixes the failure cases by explictly specifying
the current user id in setUp method to match the real user id
when running in both system user or secondary users.

TelephonyTest which is the parent class of TelephonyRegistryTest mocks
IActivityManager which will return user id with default value 0 if we
don't specify it. When running the test case in secondary users, it will
mismatch actually user id and cause test cases fail.

Bug: 352120148
Test: atest FrameworkTelephonyTests for both system user and secondary
users
Flag: EXEMPT tiny test only fix

Change-Id: I333006952229f631543d07fb155ee00079226c71