[Settings] Add a verification flow for exiting repair mode

Handles the ACTION_CONFIRM_REPAIR_MODE_DEVICE_CREDENTIAL
intent to launch the confirm device credential activity for
users to exiting repair mode. The activity passes a special
user id USER_REPAIR_MODE to the framework and verify credentials
that the user enrolled in normal mode.

Bug: 277561275
Test: am start -a android.app.action.PREPARE_REPAIR_MODE_DEVICE_CREDENTIAL
      settings put global repair_mode_active 1
      am start -a android.app.action.CONFIRM_REPAIR_MODE_DEVICE_CREDENTIAL
      The credential is verified successfully.
Change-Id: I9ffe32f9925ee2b990c49d5674d27196a4c9edf7

src/com/android/settings/password/ConfirmDeviceCredentialBaseFragment.java

@@ -106,6 +106,7 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
     protected boolean mFrp;
     protected boolean mRemoteValidation;
     protected boolean mRequestWriteRepairModePassword;
+    protected boolean mRepairMode;
     protected CharSequence mAlternateButtonText;
     protected BiometricManager mBiometricManager;
     @Nullable protected RemoteLockscreenValidationSession mRemoteLockscreenValidationSession;
@@ -181,6 +182,7 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
         mUserId = Utils.getUserIdFromBundle(getActivity(), intent.getExtras(),
                 isInternalActivity());
         mFrp = (mUserId == LockPatternUtils.USER_FRP);
+        mRepairMode = (mUserId == LockPatternUtils.USER_REPAIR_MODE);
         mUserManager = UserManager.get(getActivity());
         mEffectiveUserId = mUserManager.getCredentialOwnerProfile(mUserId);
         mLockPatternUtils = new LockPatternUtils(getActivity());
@@ -269,7 +271,7 @@ public abstract class ConfirmDeviceCredentialBaseFragment extends InstrumentedFr
     // verifyTiedProfileChallenge. In such case, we also wanna show the user message that
     // fingerprint is disabled due to device restart.
     protected boolean isStrongAuthRequired() {
-        return mFrp
+        return mFrp || mRepairMode
                 || !mLockPatternUtils.isBiometricAllowedForUser(mEffectiveUserId)
                 || !mUserManager.isUserUnlocked(mUserId);
     }