j1939acd: replace 0x0fed8 by constant J1939_PGN_ADDRESS_COMMANDED

Reported-by: josemic <josemic@users.noreply.github.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

j1939acd.c

@@ -631,7 +631,7 @@ int main(int argc, char *argv[])
 					schedule_itimer(50);
 			}
 			break;
-		case 0x0fed8:
+		case J1939_PGN_ADDRESS_COMMANDED:
 			if (!host_is_little_endian())
 				bswap(dat, 8);
 			memcpy(&cmd_name, dat, 8);