SDL: Have HIDAPI skip MFI supported HID devices on macOS to avoid duplicate devices.

SDL Commits
1 
From 28da6c5ddb98b92b1cc0e92876f5044dc3648190 Mon Sep 17 00:00:00 2001
From: Patrick Hogan <[EMAIL REDACTED]>
Date: Thu, 27 May 2021 14:42:03 -0500
Subject: [PATCH] Have HIDAPI skip MFI supported HID devices on macOS to avoid
 duplicate devices.

---
 src/hidapi/mac/hid.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/hidapi/mac/hid.c b/src/hidapi/mac/hid.c
index bdaa612aca..79bcff89de 100644
--- a/src/hidapi/mac/hid.c
+++ b/src/hidapi/mac/hid.c
@@ -488,6 +488,13 @@ struct hid_device_info  HID_API_EXPORT *hid_enumerate(unsigned short vendor_id,
 			continue;
 		}
 
+		#if defined(SDL_JOYSTICK_MFI) && defined(__MACOSX__)
+		extern SDL_bool IOS_SupportedHIDDevice(IOHIDDeviceRef device);
+		if (IOS_SupportedHIDDevice(dev)) {
+			continue;
+		}
+		#endif
+
 		dev_vid = get_vendor_id(dev);
 		dev_pid = get_product_id(dev);