ARM: dts: aspeed: romulus: hog GPIOS7

GPIOS7 shall be pulled low for CPLD to continue the power up sequence.
With this hogged as pull-low, the CPLD workaround can be removed in
OpenBMC.
Signed-off-by: Lei YU <mine260309@gmail.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts

@@ -198,6 +198,12 @@ nic_func_mode1 {
 		output-low;
 		line-name = "nic_func_mode1";
 	};
+	seq_cont {
+		gpio-hog;
+		gpios = <ASPEED_GPIO(S, 7) GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "seq_cont";
+	};
 };
 
 &vuart {