soc: wch: rename pinctrl struct for the ch32v303

Rename the struct ch32v303_pinctrl_soc_pin to ch32v30x_pinctrl_soc_pin
to allow the same struct to be used for other SoC of the series.

Signed-off-by: Miguel Gazquez <miguel.gazquez@bootlin.com>

Author: miggazElquez

soc/wch/ch32v/qingke_v4f/pinctrl_soc.h

@@ -10,7 +10,7 @@
 /**
  * @brief Type to hold a pin's pinctrl configuration.
  */
-struct ch32v303_pinctrl_soc_pin {
+struct ch32v30x_pinctrl_soc_pin {
 	uint32_t config: 22;
 	bool bias_pull_up: 1;
 	bool bias_pull_down: 1;
@@ -21,7 +21,7 @@ struct ch32v303_pinctrl_soc_pin {
 	uint8_t slew_rate: 2;
 };
 
-typedef struct ch32v303_pinctrl_soc_pin pinctrl_soc_pin_t;
+typedef struct ch32v30x_pinctrl_soc_pin pinctrl_soc_pin_t;
 
 #define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx)                                               \
 	{                                                                                          \