mmplugin: Fix SIM being reported as locked when no sim is inserted

components/mmplugin/signalindicator.cpp

@@ -28,7 +28,7 @@ bool SignalIndicator::simLocked() const
     if (!m_modem) {
         return false;
     }
-    return !(m_modem->unlockRequired() == MM_MODEM_LOCK_NONE || m_modem->unlockRequired() == MM_MODEM_LOCK_SIM_PIN2);
+    return m_modem->unlockRequired() == MM_MODEM_LOCK_SIM_PIN;
 }
 
 bool SignalIndicator::available() const