Camera: Expose Aux camera to apps present in the whitelist

Issue:
3rd party apk cannot handle additional aux camera and may cause crash,
Mono camera doesnt support all capabilities of HAL3 causing CTS issue.

Fix:
1. Expose aux camera to apps present in the whitelist
2. ignore the availabe/unavailable status update for aux camera
3. returning exception for open request for bad cameraid

Change-Id: I15910154c6df205e6d4e00bfad30a00c9e3d5bee
CRs-Fixed: 1086937