Adds assets, removes SFPS indicator, updates BP controller for rear display/tent mode

Adds new assets for BiometricPrompt in rear display/tent mode, and
updates AuthBiometricFingerprintIconController accordingly to use new
assets and hide the SFPS indicator. Also ensures the icon is updated on
all configuration changes.

Test: atest SideFpsControllerTest
Test: atest AuthBiometricFingerprintViewTest
Test: (manual) adb shell cmd device_state state 3 to turn on rear display mode, then verify correct asset across all configuration changes
Fixes: 265198124
Change-Id: Ib0fad9aeddb484df7c62f7a78f477a541dedb872