DeviceCheck tvOS xcode13.0 beta1

#DeviceCheck.framework https://github.com/xamarin/xamarin-macios/pull/12074

diff -ruN /Applications/Xcode_12.5.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/DeviceCheck.framework/Headers/DCAppAttestService.h /Applications/Xcode_13.0.0-beta.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/DeviceCheck.framework/Headers/DCAppAttestService.h
--- /Applications/Xcode_12.5.0.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/DeviceCheck.framework/Headers/DCAppAttestService.h	2021-03-16 13:55:25.000000000 -0400
+++ /Applications/Xcode_13.0.0-beta.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk/System/Library/Frameworks/DeviceCheck.framework/Headers/DCAppAttestService.h	2021-06-02 05:34:12.000000000 -0400
@@ -8,12 +8,10 @@
 
 #import <DeviceCheck/DeviceCheck.h>
 
-#if TARGET_OS_IOS || TARGET_OS_OSX
-
 NS_ASSUME_NONNULL_BEGIN
 
 DC_EXPORT
-API_AVAILABLE(macos(11.0), ios(14.0)) API_UNAVAILABLE(tvos, watchos)
+API_AVAILABLE(macos(11.0), ios(14.0), tvos(15.0)) API_UNAVAILABLE(watchos)
 @interface DCAppAttestService : NSObject
 
 /**
@@ -64,6 +62,3 @@
 @end
 
 NS_ASSUME_NONNULL_END
-
-
-#endif // TARGET_OS_IOS || TARGET_OS_OSX