build: fix header dependencies

We shouldn't depend on any header file from the previous implementation.

plugins/option/mm-plugin-option.c

@@ -18,7 +18,7 @@
 #include <string.h>
 #include <gmodule.h>
 
-#include <mm-errors-types.h>
+#include <libmm-common.h>
 
 #include "mm-private-boxed-types.h"
 #include "mm-plugin-option.h"

plugins/option/mm-plugin-option.h

@@ -19,7 +19,6 @@
 #define MM_PLUGIN_OPTION_H
 
 #include "mm-plugin-base.h"
-#include "mm-generic-gsm.h"
 
 #define MM_TYPE_PLUGIN_OPTION            (mm_plugin_option_get_type ())
 #define MM_PLUGIN_OPTION(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MM_TYPE_PLUGIN_OPTION, MMPluginOption))