[nemo-qml-plugin-devicelock] Report locked out status when max tries …

…is exceeded. Contributes to JB#37380

Without this change both temporary (partially missing) and
permanently locked out entered to locked out state through IncorrectSecurityCode.
Thus, reported feedback looked like:

feedback: 15 remaining: -1
feedback: 12 remaining: 0
feedback: 15 remaining: -1

Even thou final state is correct this caused flickering. Further, I think
that there's no need to report last incorrect security code separately.
I'd rather consider all locked out cases implicitly incorrect security
code attempts on the user interface side if needed.

src/nemo-devicelock/host/hostdevicelock.cpp

@@ -171,11 +171,12 @@ void HostDeviceLock::enterSecurityCode(const QString &code)
         default: {
             const int maximum = maximumAttempts();
 
-            if (maximum > 0) {
-                feedback(AuthenticationInput::IncorrectSecurityCode, qMax(0, maximum - result));
 
+            if (maximum > 0) {
                 if (result >= maximum) {
                     lockedOut();
+                } else {
+                    feedback(AuthenticationInput::IncorrectSecurityCode, qMax(0, maximum - result));
                 }
             } else {
                 feedback(AuthenticationInput::IncorrectSecurityCode, -1);