Small fix for the key grant alias used in importKey

Bug: 74345822
Test: atest RecoveryControllerHostTest#testImportKey_ValidKey
Change-Id: I54812b3d7465ee508fe48886f5897470fe7455a0

core/java/android/security/keystore/recovery/RecoveryController.java

@@ -578,7 +578,7 @@ public class RecoveryController {
             if (grantAlias == null) {
                 throw new InternalRecoveryServiceException("Null grant alias");
             }
-            return getKeyFromGrant(alias);
+            return getKeyFromGrant(grantAlias);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         } catch (UnrecoverableKeyException e) {