ARM: dts: vt8500: Move memory nodes to board dts and fix addr/size

VIA/WonderMedia SoCs don't have on-chip memory, so their memory
nodes are better placed in per-board dts rather than per-SoC dtsi.

Move them accordingly, and also add correct node addresses and
sizes for each of the boards. Some boards were also available with
more memory than included in this commit - those would need a
separate DT or an appropriate kernel cmdline argument to reflect it,
as the bootloader on these devices doesn't handle DT at all nor does
it any runtime discovery of available memory size.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250515-wmt-dts-updates-v2-2-246937484cc8@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

arch/arm/boot/dts/vt8500/vt8500-bv07.dts

@@ -10,6 +10,11 @@
 
 / {
 	model = "Benign BV07 Netbook";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
 };
 
 &fb {

arch/arm/boot/dts/vt8500/vt8500.dtsi

@@ -21,11 +21,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x0 0x0>;
-	};
-
 	aliases {
 		serial0 = &uart0;
 		serial1 = &uart1;

arch/arm/boot/dts/vt8500/wm8505-ref.dts

@@ -10,6 +10,11 @@
 
 / {
 	model = "Wondermedia WM8505 Netbook";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
 };
 
 &fb {

arch/arm/boot/dts/vt8500/wm8505.dtsi

@@ -21,11 +21,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x0 0x0>;
-	};
-
  	aliases {
 		serial0 = &uart0;
 		serial1 = &uart1;

arch/arm/boot/dts/vt8500/wm8650-mid.dts

@@ -10,6 +10,11 @@
 
 / {
 	model = "Wondermedia WM8650-MID Tablet";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x10000000>;
+	};
 };
 
 &fb {

arch/arm/boot/dts/vt8500/wm8650.dtsi

@@ -21,11 +21,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x0 0x0>;
-	};
-
  	aliases {
 		serial0 = &uart0;
 		serial1 = &uart1;

arch/arm/boot/dts/vt8500/wm8750-apc8750.dts

@@ -11,6 +11,11 @@
 
 / {
 	model = "VIA APC8750";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x20000000>;
+	};
 };
 
 &pinctrl {

arch/arm/boot/dts/vt8500/wm8750.dtsi

@@ -21,11 +21,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x0 0x0>;
-	};
-
 	aliases {
 		serial0 = &uart0;
 		serial1 = &uart1;

arch/arm/boot/dts/vt8500/wm8850-w70v2.dts

@@ -22,6 +22,11 @@
 		brightness-levels = <0 40 60 80 100 130 190 255>;
 		default-brightness-level = <5>;
 	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x20000000>;
+	};
 };
 
 &fb {

arch/arm/boot/dts/vt8500/wm8850.dtsi

@@ -21,11 +21,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x0 0x0>;
-	};
-
 	aliases {
 		serial0 = &uart0;
 		serial1 = &uart1;