hw: sd: set category of the sd memory card

Sets the category of the sd memory card as DEVICE_CATEGORY_STORAGE.
Devices should be assigned to one of DEVICE_CATEGORY_XXXX.

Signed-off-by: kumar sourav <sourav.jb1988@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190124162045.10474-1-sourav.jb1988@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/sd/sd.c

@@ -2121,6 +2121,7 @@ static void sd_class_init(ObjectClass *klass, void *data)
     dc->vmsd = &sd_vmstate;
     dc->reset = sd_reset;
     dc->bus_type = TYPE_SD_BUS;
+    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 
     sc->set_voltage = sd_set_voltage;
     sc->get_dat_lines = sd_get_dat_lines;