[][MT7986][Change reserved memory for BL31]

[Description]
Change reserved memory for BL31 from 0x20000 to 0x30000,
for FSEK feature needs more memory in BL31

[Release-log]
N/A

Change-Id: I48f156e8122845f7862ddfb225d51e49ee1e01fd
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7508216
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
index 820e8bb..81851a0 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -124,9 +124,9 @@
 		#size-cells = <2>;
 		ranges;
 
-		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		/* 256 KiB reserved for ARM Trusted Firmware (BL31) */
 		secmon_reserved: secmon@43000000 {
-			reg = <0 0x43000000 0 0x30000>;
+			reg = <0 0x43000000 0 0x40000>;
 			no-map;
 		};
 
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
index 96c68a5..6fcfa57 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986b.dtsi
@@ -124,9 +124,9 @@
 		#size-cells = <2>;
 		ranges;
 
-		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+		/* 256 KiB reserved for ARM Trusted Firmware (BL31) */
 		secmon_reserved: secmon@43000000 {
-			reg = <0 0x43000000 0 0x30000>;
+			reg = <0 0x43000000 0 0x40000>;
 			no-map;
 		};