staging:ozwpan:Fix sparse warning of cast to restricted __le16

This patch fixes the following sparse warnings:
drivers/staging/ozwpan/ozusbsvc1.c:391:36: warning: cast to restricted __le16
drivers/staging/ozwpan/ozusbsvc1.c:393:33: warning: cast to restricted __le16
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ozwpan/ozprotocol.h

@@ -219,8 +219,8 @@ struct oz_get_desc_rsp {
 	u8	elt_seq_num;
 	u8	type;
 	u8	req_id;
-	u16	offset;
-	u16	total_size;
+	__le16	offset;
+	__le16	total_size;
 	u8	rcode;
 	u8	data[1];
 } PACKED;