GPIO descriptor fixes (#578)

Drivers/st7701-module/bindings/sitronix,st7701.yaml

@@ -233,10 +233,6 @@ properties:
     default: GPIO_PIN_SPEC_NONE
     description: Optional hardware reset pin for the panel. Falls back to a software reset
       (sent over the 3-wire bus) if not set.
-  reset-active-high:
-    type: boolean
-    default: false
-    description: Whether the reset pin is active high
   mirror-by-cmd:
     type: boolean
     default: false

Drivers/st7701-module/include/drivers/st7701.h

@@ -88,7 +88,6 @@ struct St7701Config {
     // Optional hardware reset pin for the panel. GPIO_PIN_SPEC_NONE falls back to a software
     // reset sent over the 3-wire bus (see esp_lcd_st7701's panel_st7701_reset()).
     struct GpioPinSpec pin_reset;
-    bool reset_active_high;
 
     // See the 'mirror-by-cmd' and 'auto-del-panel-io' binding properties.
     bool mirror_by_cmd;

Drivers/st7701-module/source/st7701.cpp

@@ -238,7 +238,8 @@ static error_t start(Device* device) {
         .rgb_ele_order = LCD_RGB_ELEMENT_ORDER_RGB,
         .data_endian = LCD_RGB_DATA_ENDIAN_LITTLE,
         .bits_per_pixel = config->bits_per_pixel,
-        .flags = { .reset_active_high = config->reset_active_high },
+        // ST7701's reset line is fixed active-low in hardware.
+        .flags = { .reset_active_high = false },
         .vendor_config = &vendor_config,
     };