mediatek-sdk: mt7981: enable ramoops / pstore

Signed-off-by: Arif Alam <arif.alam@netexperience.com>

feeds/mediatek-sdk/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi

@@ -141,6 +141,14 @@
 		#size-cells = <2>;
 		ranges;
 
+		ramoops: ramoops@42ff0000 {
+			compatible = "ramoops";
+			reg = <0x0 0x42ff0000 0x0 0x10000>;
+			record-size = <0x2000>;
+			console-size = <0x2000>;
+			pmsg-size = <0x2000>;
+		};
+
 		/* 512 KiB reserved for ARM Trusted Firmware (BL31 + BL32) */
 		secmon_reserved: secmon@43000000 {
 			reg = <0 0x43000000 0 0x80000>;

feeds/mediatek-sdk/mediatek/mt7981/config-5.4

@@ -384,6 +384,16 @@ CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_SYSCON=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_PRINTK_TIME=y
+CONFIG_PSTORE=y
+# CONFIG_PSTORE_842_COMPRESS is not set
+CONFIG_PSTORE_CONSOLE=y
+# CONFIG_PSTORE_DEFLATE_COMPRESS is not set
+# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
+# CONFIG_PSTORE_LZ4_COMPRESS is not set
+# CONFIG_PSTORE_LZO_COMPRESS is not set
+CONFIG_PSTORE_PMSG=y
+CONFIG_PSTORE_RAM=y
+# CONFIG_PSTORE_ZSTD_COMPRESS is not set
 CONFIG_PWM=y
 CONFIG_PWM_MEDIATEK=y
 # CONFIG_PWM_GPIO is not set