[Mono.Android] Suppress new IL3050 in ManagedTypeManager.RegisterNativeMembers

dotnet/java-interop#1474 (pulled in by the Java.Interop bump in this PR)
adds [RequiresDynamicCode] to
JniEnvironment.Types.RegisterNatives(.., JniNativeMethodRegistration[], int),
surfacing a new IL3050 AOT analysis warning at
ManagedTypeManager.RegisterNativeMembers under NativeAOT. That broke
BuildHasNoWarnings(True,False,"apk",NativeAOT), which asserts an exact
warning count.

Suppress for now; the JniNativeMethodRegistration[] registration path will
be migrated to the blittable RegisterNatives(JniObjectReference,
ReadOnlySpan<JniNativeMethod>) overload in a future change. Mirrors the
companion change made on main in #11782.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: jonathanpeppers

src/Mono.Android/Microsoft.Android.Runtime/ManagedTypeManager.cs

@@ -65,6 +65,7 @@ static Type MakeGenericType (
 	[UnconditionalSuppressMessage ("Trimming", "IL2057", Justification = "Type.GetType() can never statically know the string value parsed from parameter 'methods'.")]
 	[UnconditionalSuppressMessage ("Trimming", "IL2067", Justification = "Delegate.CreateDelegate() can never statically know the string value parsed from parameter 'methods'.")]
 	[UnconditionalSuppressMessage ("Trimming", "IL2072", Justification = "Delegate.CreateDelegate() can never statically know the string value parsed from parameter 'methods'.")]
+	[UnconditionalSuppressMessage ("AOT", "IL3050", Justification = "JniNativeMethodRegistration[] registration path will be migrated to the blittable RegisterNatives overload in a future change.")]
 	public override void RegisterNativeMembers (
 			JniType nativeClass,
 			[DynamicallyAccessedMembers (MethodsAndPrivateNested)]