staging: gpib: switch to kmalloc(sizeof(*status))

Fix checkpatch warning:

Prefer kmalloc(sizeof(*status)...) over
kmalloc(sizeof(struct gpib_status_byte)...)

Signed-off-by: Andreas Kleinbichler <andi.kleinbichler@gmail.com>
Link: https://lore.kernel.org/r/aCdY-OgvoTUjcIeF@andreas-VirtualBox
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: AndiKleini

drivers/staging/gpib/common/gpib_os.c

@@ -198,7 +198,7 @@ int push_status_byte(struct gpib_board *board, struct gpib_status_queue *device,
 			return retval;
 	}
 
-	status = kmalloc(sizeof(struct gpib_status_byte), GFP_KERNEL);
+	status = kmalloc(sizeof(*status), GFP_KERNEL);
 	if (!status)
 		return -ENOMEM;