arm64: dts: mt8183: add capacity-dmips-mhz

Pinned the frequency to the max and run dhrystone to get the value.
little cpu: 11071 (max freq: 1989000)
big cpu: 15293 (max freq: 1989000)

11071 : 15293 ~= 741 : 1024
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8183.dtsi

@@ -56,6 +56,7 @@ cpu0: cpu@0 {
 			compatible = "arm,cortex-a53";
 			reg = <0x000>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <741>;
 		};
 
 		cpu1: cpu@1 {
@@ -63,6 +64,7 @@ cpu1: cpu@1 {
 			compatible = "arm,cortex-a53";
 			reg = <0x001>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <741>;
 		};
 
 		cpu2: cpu@2 {
@@ -70,6 +72,7 @@ cpu2: cpu@2 {
 			compatible = "arm,cortex-a53";
 			reg = <0x002>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <741>;
 		};
 
 		cpu3: cpu@3 {
@@ -77,6 +80,7 @@ cpu3: cpu@3 {
 			compatible = "arm,cortex-a53";
 			reg = <0x003>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <741>;
 		};
 
 		cpu4: cpu@100 {
@@ -84,6 +88,7 @@ cpu4: cpu@100 {
 			compatible = "arm,cortex-a73";
 			reg = <0x100>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
 		};
 
 		cpu5: cpu@101 {
@@ -91,6 +96,7 @@ cpu5: cpu@101 {
 			compatible = "arm,cortex-a73";
 			reg = <0x101>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
 		};
 
 		cpu6: cpu@102 {
@@ -98,6 +104,7 @@ cpu6: cpu@102 {
 			compatible = "arm,cortex-a73";
 			reg = <0x102>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
 		};
 
 		cpu7: cpu@103 {
@@ -105,6 +112,7 @@ cpu7: cpu@103 {
 			compatible = "arm,cortex-a73";
 			reg = <0x103>;
 			enable-method = "psci";
+			capacity-dmips-mhz = <1024>;
 		};
 	};