Include memory protection in public API

Makes flex page management functions available to user applications
by adding the memory protection header to the public API collection.

Author: HeatCrab

include/linmo.h

@@ -6,6 +6,7 @@
 #include <lib/malloc.h>
 
 #include <sys/errno.h>
+#include <sys/memprot.h>
 #include <sys/mqueue.h>
 #include <sys/mutex.h>
 #include <sys/pipe.h>