sdio: store vendor strings

Store vendor strings found in CISTPL_VERS_1 so that function drivers
can access them.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

drivers/mmc/core/sdio_bus.c

@@ -211,6 +211,9 @@ static void sdio_release_func(struct device *dev)
 
 	sdio_free_func_cis(func);
 
+	if (func->info)
+		kfree(func->info);
+
 	kfree(func);
 }