Fixing test failures im SharedCameraTest.

Fixing following issues found during test failure for
testSharedSessionUnsupportedOperations:

1) Fixing the issue of device lock not being released when
unsupported operations error occur.
2) adding the check in create session ndk call to return error if
the output configuration has sharing enabled.
3) removing the shared surfaces from the splitter when the shared client disconnects.

Flag: com.android.internal.camera.flags.camera_multi_client
Bug: 394083987
Test: run CTS test testSharedSessionUnsupportedOperations
Change-Id: If893afd206eb2a418724979dc3ad2e6bcf905d27