A test api to override carrier information

This API should only be used for testing purpose e.g., CTS/GTS/SL4A
By overriding carrier information, we could force a particular carrier id,
carrier's config, but also any country or carrier overlays to be loaded
when using a test SIM with a call box.

Bug: 72332597
Test: atest CtsTelephonyTestCases:CarrierIdentificationTest
Change-Id: Ia66a520970c845c10c06db929ca0b05718550167
(cherry picked from commit a13278b4f254f5fa985151d368733c2a0a440e1c)
Merged-in: a13278b4f254f5fa985151d368733c2a0a440e1c
1 file changed