Implementation of AMediaDrm_getKeyRequestWithDefaultUrlandType

Add new NDK API AMediaDrm_getKeyRequestWithDefaultUrlandType to set keyRequestType and defaultUrl in addition to the functionality provided by AMediaDrm_getKeyRequest.

Related changes:
1. Add new API AMediaDrm_getKeyRequestWithDefaultUrlandType
2. Add new enum AMediaDrmKeyRequestType
3. Implementation of AMediaDrm_getKeyRequestWithDefaultUrlandType
4. CTS test

This CL includes:
3. Implementation of AMediaDrm_getKeyRequestWithDefaultUrlandType

Bug: 202186875
Test: CtsMediaDrmTestCases:NativeMediaDrmClearkeyTest
Change-Id: Ie32f7635d4be888d64b2040f95ebeaa5de59c63e