dbg_ports() : move proto to system.h

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31557 a1c6a512-1295-4272-9138-f99709370657

apps/debug_menu.h

@@ -24,8 +24,4 @@
 bool debug_menu(void);
 bool run_debug_screen(char* screen);
 
-#ifndef SIMULATOR
-extern bool dbg_ports(void);
-#endif
-
 #endif

firmware/export/system.h

@@ -386,4 +386,8 @@ static inline uint32_t swaw32_hw(uint32_t value)
  * break strict aliasing rules' B.S. */
 #define PUN_PTR(type, p) ((type)(intptr_t)(p))
 
+#ifndef SIMULATOR
+bool dbg_ports(void);
+#endif
+
 #endif /* __SYSTEM_H__ */