nvdimm: put it into the 'storage' category

The category of the nvdimm device is not set, put it into the 'storage'
category.

Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@cloud.ionos.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201130083630.2520597-5-ganqixin@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index e0a9d60..7397b67 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -245,6 +245,7 @@
 
     nvc->read_label_data = nvdimm_read_label_data;
     nvc->write_label_data = nvdimm_write_label_data;
+    set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
 }
 
 static TypeInfo nvdimm_info = {