Redial CS calls via emergency routing

When a CODE_SIP_ALTERNATE_EMERGENCY_CALL is received after placing a
normal routing emergency call, the call should be retried using
emergency routing.
This functionality is already implemented for ImsPhoneConnection.
This modification updates GsmCdmaConnection to handle CS redial
scenarios.
For CS redials, emergency routing will be enforced only when the
emergency category is not EMERGENCY_SERVICE_CATEGORY_UNSPECIFIED.

Flag: EXEMPT bugfix
Bug: 347269126
Test: atest FrameworksTelephonyTests
Test: Verification of scenarios that retry CS emergency calls or CS normal calls after receiving a 380 AS response
Test: Verification of scenarios that retry PS emergency calls after receiving a 380 AS response
Test: Verification of scenarios that initiate PS or CS emergency calls without regression
Change-Id: I1967bd7221ced0eb77bb2540146e7ea5b191d829