[TG3]: Fix APE induced regression

This patch fixes a bug caused by the recent APE support added for 5761
devices.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -6985,6 +6985,7 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 		break;
 	};
 
+	if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
 		/* Write our heartbeat update interval to APE. */
 		tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
 				APE_HOST_HEARTBEAT_INT_DISABLE);