Update the biometric unlock logo to Private Space logo

All activities that use biometric login through the CDCA class show a
Settings icon in the prompt. This cl adds a capability for the client of
the CDCA to set icon and icon description as extras to the unlock
intent.

Screenshot: http://shortn/_OpKTYFtddM

Bug: 333528540
Test: Manually verified on the device

Change-Id: Id7b5a3fe575069bef1810769e4f437e717d2d3c6