luasd: fix parsing of input options

This is just a partial fix.
Fixes #6148
(cherry picked from commit 114a88bc426ee433e0d060c5d74caaaf10a7fab1)
Signed-off-by: Pierre Ynard <linkfanel@yahoo.fr>

modules/lua/libs/sd.c

@@ -228,8 +228,8 @@ static int vlclua_sd_add_item( lua_State *L )
             int i_options = 0;
             const char *psz_path = lua_tostring( L, -1 );
 
-            vlclua_read_options( p_sd, L, &i_options, &ppsz_options );
             lua_pop( L, 1 );
+            vlclua_read_options( p_sd, L, &i_options, &ppsz_options );
             lua_getfield( L, -1, "title" );
             const char *psz_title = luaL_checkstring( L, -1 ) ? luaL_checkstring( L, -1 ) : psz_path;
             input_item_t *p_input = input_item_NewExt( psz_path, psz_title,