ARM: dts: aspeed: everest: Add system level indicator leds

These are the system level indicator leds that are driven by
PCA9551 connected to the Operator Panel.

Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210607031259.475020-2-joel@jms.id.au

Author: vishwabmc

arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts

@@ -890,6 +890,48 @@
 				compatible = "atmel,24c32";
 				reg = <0x50>;
 			};
+
+			pca_oppanel: pca9551@60 {
+				compatible = "nxp,pca9551";
+				reg = <0x60>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				led@0 {
+					label = "front-sys-id0";
+					reg = <0>;
+					retain-state-shutdown;
+					default-state = "keep";
+					type = <PCA955X_TYPE_LED>;
+				};
+
+				led@1 {
+					label = "front-check-log0";
+					reg = <1>;
+					retain-state-shutdown;
+					default-state = "keep";
+					type = <PCA955X_TYPE_LED>;
+				};
+
+				led@2 {
+					label = "front-enc-fault1";
+					reg = <2>;
+					retain-state-shutdown;
+					default-state = "keep";
+					type = <PCA955X_TYPE_LED>;
+				};
+
+				led@3 {
+					label = "front-sys-pwron0";
+					reg = <3>;
+					retain-state-shutdown;
+					default-state = "keep";
+					type = <PCA955X_TYPE_LED>;
+				};
+			};
 		};
 
 		i2c14mux0chn3: i2c@3 {