fix: handle SIM PIN decryption on devices without FBE support

* Although, Android 13 removed support for full-disk encryption
  entirely, we shouldn't assume that all legacy devices will upgrade to
  file-based encryption.
* The following patch set will fix decryption of the PIN storage during
  Direct Boot mode on devices without "fileencryption=" clause present
  in their fstab file. The DevicePolicyManager will return unsupported
  encryption status for those devices, so the UserAuthenticationObserverService
  should be started, otherwise we'll mark all SIM PIN codes as corrupted
  since we attempt to start decryption before the hardware-backed
  KeyStore was unlocked.

Signed-off-by: iusmac <[email protected]>

src/com/github/iusmac/sevensim/SystemBroadcastReceiver.java

@@ -57,9 +57,6 @@ public void onReceive(final Context context, final Intent intent) {
                 // This also ensures proper app backup data restore
                 mLauncherIconVisibilityManagerProvider.get().updateVisibility();
 
-                final int encryptionStatus = Utils.IS_AT_LEAST_T ? -1 :
-                    mDevicePolicyManagerProvider.get().getStorageEncryptionStatus();
-
                 // Need to reschedule the next weekly repeat schedule processing iteration again, as
                 // it was already done during Direct Boot mode when the LOCKED_BOOT_COMPLETED event
                 // fired, but the scheduler did not have access to the SIM PIN storage, which is
@@ -69,7 +66,7 @@ public void onReceive(final Context context, final Intent intent) {
                 // is delivered right after the LOCKED_BOOT_COMPLETED event and the user is still
                 // locked. Thus, we need to wait for the user to unlock the device in order to
                 // access the user authentication bound secret key
-                switch (encryptionStatus) {
+                switch (mDevicePolicyManagerProvider.get().getStorageEncryptionStatus()) {
                     case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED:
                     case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE:
                     case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: