[dotnet-linker] Set Application.DeploymentTarget and Application.SdkVersion so that we can use the shared implementation.

tools/dotnet-linker/Compat.cs

@@ -38,14 +38,6 @@ namespace Xamarin.Bundler {
 			}
 		}
 
-		public Version SdkVersion {
-			get { return Configuration.SdkVersion; }
-		}
-
-		public Version DeploymentTarget {
-			get { return Configuration.DeploymentTarget; }
-		}
-
 		public ApplePlatform Platform {
 			get { return Configuration.Platform; }
 		}

tools/dotnet-linker/LinkerConfiguration.cs

@@ -136,6 +136,8 @@ namespace Xamarin.Linker {
 			Target = new Target (Application);
 
 			Application.Cache.Location = CacheDirectory;
+			Application.DeploymentTarget = DeploymentTarget;
+			Application.SdkVersion = SdkVersion;
 
 			switch (Platform) {
 			case ApplePlatform.iOS: