typo fix

src/util.rs

@@ -77,7 +77,7 @@ pub fn print_packet(pkt: &Packet<MAX_PACKET_LEN>) {
                 );
             }
             (Some(hw), None) => {
-                println!("{} \t{hw:#06x}", "SW:".color(color));
+                println!("{} \t{hw:#06x}", "HW:".color(color));
             }
             (None, Some(sw)) => {
                 println!("{} \t{sw:#04x}", "SW:".color(color));