boards: wch: update the bord test definitions to match the new drivers

The CH32V series now has GPIO, watchdog, I2C, and PWM drivers. Enable
Twister for these drivers by updating the board definitions to match.

On the larger chips, also enable the watchdog in Devicetree so it's
usable by the sample.

Note that the 203 and 303 do not yet have the appropriate iwdg
Devicetree node.

Signed-off-by: Michael Hope <michaelh@juju.nz>

boards/wch/ch32v003evt/ch32v003evt.yaml

@@ -11,3 +11,6 @@ supported:
   - dma
   - gpio
   - i2c
+  - pwm
+  - uart
+  - watchdog

boards/wch/ch32v003f4p6_dev_board/ch32v003f4p6_dev_board.yaml

@@ -9,5 +9,7 @@ ram: 2
 flash: 16
 supported:
   - gpio
-  - uart
   - i2c
+  - pwm
+  - uart
+  - watchdog

boards/wch/ch32v006evt/ch32v006evt.dts

@@ -57,6 +57,7 @@
 		led0 = &blue_led1;
 		led1 = &blue_led2;
 		pwm-led0 = &blue_pwm2;
+		watchdog0 = &iwdg;
 	};
 };
 
@@ -88,3 +89,7 @@
 	pinctrl-0 = <&usart1_default>;
 	pinctrl-names = "default";
 };
+
+&iwdg {
+	status = "okay";
+};

boards/wch/ch32v006evt/ch32v006evt.yaml

@@ -12,5 +12,6 @@ supported:
   - gpio
   - i2c
   - pwm
+  - uart
   - watchdog
 vendor: wch

boards/wch/ch32v303vct6_evt/ch32v303vct6_evt.yaml

@@ -0,0 +1,14 @@
+identifier: ch32v303vct6_evt
+name: WCH CH32V303VCT6-EVT Evaluation Board
+type: mcu
+arch: riscv
+toolchain:
+  - cross-compile
+  - zephyr
+ram: 32
+flash: 480
+supported:
+  - gpio
+  - i2c
+  - pwm
+  - uart

boards/wch/linkw/linkw.dts

@@ -51,6 +51,7 @@
 	aliases {
 		led0 = &blue_led;
 		sw0 = &mode;
+		watchdog0 = &iwdg;
 	};
 };
 
@@ -82,3 +83,7 @@
 	pinctrl-0 = <&usart2_default>;
 	pinctrl-names = "default";
 };
+
+&iwdg {
+	status = "okay";
+};

boards/wch/linkw/linkw.yaml

@@ -10,3 +10,7 @@ flash: 128
 supported:
   - dma
   - gpio
+  - i2c
+  - pwm
+  - uart
+  - watchdog

boards/weact/bluepillplus_ch32v203/bluepillplus_ch32v203.yaml

@@ -9,3 +9,6 @@ ram: 20
 flash: 224
 supported:
   - gpio
+  - i2c
+  - pwm
+  - uart