Support KEY_RECORD for 8BitDo Pro 2...for Xbox

This controller is a "Series S|X": it has the "share" button below the
big Xbox button. However, it reports the status of that button in a
different offset than the official controller.

The button is still recognized by official Microsoft driver in Windows,
so it looks like that both offsets are used in the wild.

Signed-off-by: Leonardo Brondani Schenkel <leonardo@schenkel.net>

xpad.c

@@ -374,7 +374,7 @@ static const struct xpad_device {
 	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
 	{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
 	{ 0x2563, 0x058d, "OneXPlayer Gamepad", 0, XTYPE_XBOX360 },
-	{ 0x2dc8, 0x2000, "8BitDo Pro 2 Wired Controller fox Xbox", 0, XTYPE_XBOXONE },
+	{ 0x2dc8, 0x2000, "8BitDo Pro 2 Wired Controller for Xbox", MAP_SELECT_BUTTON, XTYPE_XBOXONE },
 	{ 0x2dc8, 0x3106, "8BitDo Ultimate Wireless / Pro 2 Wired Controller", 0, XTYPE_XBOX360 },
 	{ 0x31e3, 0x1100, "Wooting One", 0, XTYPE_XBOX360 },
 	{ 0x31e3, 0x1200, "Wooting Two", 0, XTYPE_XBOX360 },
@@ -1104,7 +1104,7 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
 		input_report_key(dev, BTN_START,  data[4] & BIT(2));
 		input_report_key(dev, BTN_SELECT, data[4] & BIT(3));
 		if (xpad->mapping & MAP_SELECT_BUTTON)
-			input_report_key(dev, KEY_RECORD, data[22] & BIT(0));
+			input_report_key(dev, KEY_RECORD, data[22] & BIT(0) || /* 8BitDo: */ data[18] & BIT(0));
 
 		/* buttons A,B,X,Y */
 		input_report_key(dev, BTN_A,	data[4] & BIT(4));