ARM: dts: aspeed: tiogapass: Add LPC devices

Added lpc control for enabling lpc clock and lpc snoop devices to
Facebook Tiogapass device tree.
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>

arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts

@@ -54,6 +54,16 @@ flash@0 {
 	};
 };
 
+&lpc_snoop {
+	status = "okay";
+	snoop-ports = <0x80>;
+};
+
+&lpc_ctrl {
+	// Enable lpc clock
+	status = "okay";
+};
+
 &uart1 {
 	// Host Console
 	status = "okay";