mouse: Replace press_state with bool pressed

Change the mouse_button structure to use a bool pressed field instead
of an unsigned char press_state. This simplifies the API by using a
natural boolean type for a binary state.

Remove the BUTTON_PRESSED/BUTTON_RELEASED defines as they're no longer
needed.

Update all mouse drivers, tests, and the mouse command to use the new
field name and type.

Series-changes: 2
- Add new patch to replace press_state with bool pressed

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/input/efi_mouse.c

@@ -78,7 +78,7 @@ static int efi_mouse_get_event(struct udevice *dev, struct mouse_event *event)
 			u8 mask = 1 << i;
 			if (diff & mask) {
 				but->button = i;
-				but->press_state = (new_buttons & mask) ? 1 : 0;
+				but->pressed = (new_buttons & mask) ? true : false;
 				but->clicks = 1;
 				but->x = priv->x;
 				but->y = priv->y;

drivers/input/mouse-uclass.c

@@ -51,18 +51,17 @@ int mouse_get_click(struct udevice *dev, struct vid_pos *pos)
 	/* Only process button events for left button */
 	if (event.type == MOUSE_EV_BUTTON &&
 	    event.button.button == BUTTON_LEFT) {
-		bool pressed = event.button.press_state == BUTTON_PRESSED;
 		bool pending = false;
 
 		/* Detect press->release transition (click) */
-		if (uc_priv->left_pressed && !pressed) {
+		if (uc_priv->left_pressed && !event.button.pressed) {
 			pending = true;
 			uc_priv->click_pos.x = event.button.x;
 			uc_priv->click_pos.y = event.button.y;
 		}
 
 		/* Update button state */
-		uc_priv->left_pressed = pressed;
+		uc_priv->left_pressed = event.button.pressed;
 
 		/* If we just detected a click, return it */
 		if (pending) {

drivers/input/usb_mouse.c

@@ -142,7 +142,7 @@ static int usb_mouse_get_event(struct udevice *dev, struct mouse_event *event)
 
 			if (diff && mask) {
 				but->button = i;
-				but->press_state = priv->buttons & mask;
+				but->pressed = priv->buttons & mask;
 				but->clicks = 1;
 				but->x = priv->x;
 				but->y = priv->y;