First set Admin PIN, then PIN to prevent Gnuk from going into 'admin less mode'

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/securitytoken/SecurityTokenConnection.java

@@ -209,6 +209,10 @@ public class SecurityTokenConnection {
         }
     }
 
+    public void resetPw3Validation() {
+        mPw3Validated = false;
+    }
+
     @VisibleForTesting
     void determineTokenType() throws IOException {
         tokenType = mTransport.getTokenTypeIfAvailable();