staging: most: hdm-usb: fix symbolic permissions warning

Replace symbolic permissions with their octect representation to fix
checkpatch warnings.
Signed-off-by: Sebastian Haas <sehaas@deebas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/most/hdm-usb/hdm_usb.c

@@ -846,15 +846,15 @@ static struct usb_device_id usbid[] = {
 
 #define MOST_DCI_RO_ATTR(_name) \
 	struct most_dci_attribute most_dci_attr_##_name = \
-		__ATTR(_name, S_IRUGO, show_value, NULL)
+		__ATTR(_name, 0444, show_value, NULL)
 
 #define MOST_DCI_ATTR(_name) \
 	struct most_dci_attribute most_dci_attr_##_name = \
-		__ATTR(_name, S_IRUGO | S_IWUSR, show_value, store_value)
+		__ATTR(_name, 0644, show_value, store_value)
 
 #define MOST_DCI_WO_ATTR(_name) \
 	struct most_dci_attribute most_dci_attr_##_name = \
-		__ATTR(_name, S_IWUSR, NULL, store_value)
+		__ATTR(_name, 0200, NULL, store_value)
 
 /**
  * struct most_dci_attribute - to access the attributes of a dci object