core: fix ordering of DISABLING and DISABLED states

src/mm-modem.c

@@ -134,7 +134,7 @@ mm_modem_disable (MMModem *self,
     g_return_if_fail (callback != NULL);
 
     state = mm_modem_get_state (self);
-    if (state <= MM_MODEM_STATE_DISABLED) {
+    if (state <= MM_MODEM_STATE_DISABLING) {
         MMCallbackInfo *info;
 
         info = mm_callback_info_new (self, callback, user_data);

src/mm-modem.h

@@ -23,8 +23,8 @@
 
 typedef enum {
     MM_MODEM_STATE_UNKNOWN = 0,
-    MM_MODEM_STATE_DISABLING = 10,
-    MM_MODEM_STATE_DISABLED = 20,
+    MM_MODEM_STATE_DISABLED = 10,
+    MM_MODEM_STATE_DISABLING = 20,
     MM_MODEM_STATE_ENABLING = 30,
     MM_MODEM_STATE_ENABLED = 40,
     MM_MODEM_STATE_SEARCHING = 50,