Restrict SdkMemberTypes that can be used with sdk/sdk_snapshot

By default SdkMemberTypes are only supported on module_exports module
type. Support for sdk module type has to be explicitly specified.

The java_header_libs, native_shared_libs and stubs_sources are
supported on sdk. The latter is required to provide the stubs source
for an API specified in java_header_libs as they should be kept in
sync.

Bug: 146341462
Test: m nothing
Change-Id: I19b9e60792780a797458d4a9e489506602b13144

java/java.go

@@ -41,6 +41,7 @@ func init() {
 		librarySdkMemberType{
 			android.SdkMemberTypeBase{
 				PropertyName: "java_header_libs",
+				SupportsSdk:  true,
 			},
 		},
 	})