fix(lua): modules linkage (#6478)

radio/src/lua/api_stdlcd.cpp

@@ -623,6 +623,7 @@ static int luaLcdDrawCombobox(lua_State *L)
   return 0;
 }
 
+extern "C" {
 LROT_BEGIN(lcdlib, NULL, 0)
   LROT_FUNCENTRY( refresh, luaLcdRefresh )
   LROT_FUNCENTRY( clear, luaLcdClear )
@@ -649,8 +650,7 @@ LROT_END(lcdlib, NULL, 0)
 LROT_BEGIN(bitmaplib, NULL, 0)
 LROT_END(bitmaplib, NULL, 0)
 
-extern "C" {
-  LUALIB_API int luaopen_bitmap(lua_State * L) {
-    return 0;
-  }
+LUALIB_API int luaopen_bitmap(lua_State * L) {
+  return 0;
+}
 }