Add CTS test to ensure opt-in intent exists

1) Changes isUceSettingEnabled permission check to
READ_PHONE_STATE, since it is public.
2) Adds test to ensure new intent resolves correctly.

Bug: 111305845
Bug: 141951454
Test: atest CtsTelephonyTestCases
Change-Id: Ie5a799de99b73d3d6855e1da6bd62e3cefb2291b
1 file changed