Pass Timeout back to upper biometric preference

When FaceSettings or FingerprintSettings are closed because of onStop(),
this information can't been passed back to previous Preference screen,
CombinedBiometricSettings, because handlePreferenceTreeClick() from
AbstractPreferenceController class only can launchActivity() throguh
preference's Context.

In order to recevice the activity result code from FaceSettings or
FingerprintSettings, add handleBiometricPreferenceTreeClick() method in
BiometricStatusPreferenceController. Then CombinedBiometricSettings uses
this method to show FaceSettings or FingerprintSettings through
launchActivityForResult().

Bug: 263057093
Test: atest BiometricNavigationUtilsTest
Test: Manually open camera through double-click power key on different
      pages inside "Face & Fingerprint Unlock"
Change-Id: I99167739766ad5ea5f204b0f0543ba6ad18fac31

src/com/android/settings/biometrics/face/FaceSettings.java

@@ -325,6 +325,8 @@ public class FaceSettings extends DashboardFragment {
                 mFaceManager.revokeChallenge(mSensorId, mUserId, mChallenge);
                 mToken = null;
             }
+            // Let parent "Face & Fingerprint Unlock" can use this error code to close itself.
+            setResult(RESULT_TIMEOUT);
             finish();
         }
     }