kdrive: output meaningful error message for HAL devices.

kdrive ignores all devices from hal as they don't have the 'type' option
set. Instead of "Unrecognised device identifier!" print out "Ignoring
device from HAL." to indicate that the errors surrounding the device don't
really matter.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Daniel Stone <daniel@fooishbar.org>

hw/kdrive/src/kinput.c

@@ -2272,6 +2272,14 @@ NewInputDeviceRequest(InputOption *options, DeviceIntPtr *pdev)
                 return BadValue;
             }
         }
+#ifdef CONFIG_HAL
+        else if (strcmp(option->key, "_source") == 0 &&
+                 strcmp(option->value, "server/hal") == 0)
+        {
+            ErrorF("Ignoring device from HAL.\n");
+            return BadValue;
+        }
+#endif
     }
 
     if (!ki && !pi) {