8153737: Unsupported Module

Reviewed-by: alanb, mchung, psandoz

make/common/Modules.gmk

@@ -66,6 +66,7 @@ BOOT_MODULES += \
     jdk.sctp \
     jdk.security.auth \
     jdk.security.jgss \
+    jdk.unsupported \
     jdk.vm.ci \
     #
 

test/lib/share/classes/jdk/test/lib/Utils.java

@@ -48,7 +48,7 @@ import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import sun.misc.Unsafe;
+import jdk.internal.misc.Unsafe;
 
 import jdk.test.lib.process.*;
 import static jdk.test.lib.Asserts.assertTrue;