[CarPlay] Update bindings to Xcode 12.2 Beta 1 (#9719)

* [CarPlay] Update bindings to Xcode 12.2 Beta 1

CPEntity docs got removed https://developer.apple.com/documentation/carplay/cpentity
so it is very likely that Apple will keep this out from the API.

* Better obsolete and hide it from autocompletion

* Fix

* Ups I broke it again...

* Apply feedback

src/CarPlay/CPCompat.cs

@@ -0,0 +1,37 @@
+//
+// CPCompat.cs
+//
+// Authors:
+//	Alex Soto <alexsoto@microsoft.com>
+//
+// Copyright (c) Microsoft Corporation.
+//
+
+using System;
+using Foundation;
+using ObjCRuntime;
+using System.ComponentModel;
+
+#if !XAMCORE_4_0
+namespace CarPlay {
+	[Register (SkipRegistration = true)]
+	[Introduced (PlatformName.iOS, 14, 0)]
+	[Unavailable (PlatformName.iOS, PlatformArchitecture.All)]
+	[Obsolete ("This API has been removed from the native SDK.")]
+	[EditorBrowsable (EditorBrowsableState.Never)]
+	public class CPEntity : NSObject, INSSecureCoding {
+
+		public CPEntity () => throw new NotSupportedException ();
+
+		public CPEntity (NSCoder coder) => throw new NotSupportedException ();
+
+		protected CPEntity (NSObjectFlag t) => throw new NotSupportedException ();
+
+		protected internal CPEntity (IntPtr handle) => throw new NotSupportedException ();
+
+		public virtual void EncodeTo (NSCoder encoder) => throw new NotSupportedException ();
+
+		public override IntPtr ClassHandle => throw new NotSupportedException ();
+	}
+}
+#endif

src/carplay.cs

@@ -1771,10 +1771,6 @@ namespace CarPlay {
 		string PhoneOrEmail { get; }
 	}
 
-	[NoWatch, NoTV, NoMac, iOS (14,0)]
-	[BaseType (typeof (NSObject))]
-	interface CPEntity : NSSecureCoding {}
-
 	[NoWatch, NoTV, NoMac, iOS (14,0)]
 	[BaseType (typeof (CPNowPlayingButton))]
 	interface CPNowPlayingShuffleButton {}

src/frameworks.sources

@@ -301,6 +301,7 @@ CALLKIT_SOURCES = \
 # CarPlay
 
 CARPLAY_SOURCES = \
+	CarPlay/CPCompat.cs \
 	CarPlay/CPNavigationAlert.cs \
 	CarPlay/CPMessageListItem.cs \
 

tests/xtro-sharpie/iOS-CarPlay.ignore

@@ -11,6 +11,3 @@
 
 # As of Xcode 12 beta 6 the CarPlay framework does not have an error enum
 !missing-field! CarPlayErrorDomain not bound
-
-# introduced in Xcode 12 but it is not included yet in Xcode 12.2
-!unknown-type! CPEntity bound