Fix getKeyRequest_1_1 using 1.0 callback.

getKeyRequest_1_1 was using 1.0 callback.

This fix creates a common function for both 1.0 and 1.1
getKeyRequest to call. The function now calls the version
appropriate callback to return key request data, key type
and default url.

Test: CTS ClearKeySystemTest#testClearKeyPlaybackCenc
Test: CTS ClearKeySystemTest#testGetProperties
Test: CTS ClearKeySystemTest#testSetProperties
Test: Verify getKeyRequest_1_1 is called

bug: 73085826
Change-Id: Id70a92862473540f5a4eb815892a69dfe1601b92