7057935: com/sun/nio/sctp tests should be moved out of jdk_nio and into their own target, jdk_sctp

Reviewed-by: alanb
diff --git a/jdk/test/Makefile b/jdk/test/Makefile
index 6eda136..cf1f4d9 100644
--- a/jdk/test/Makefile
+++ b/jdk/test/Makefile
@@ -510,13 +510,17 @@
 
 # Stable samevm testruns (minus items from PROBLEM_LIST)
 JDK_ALL_TARGETS += jdk_nio3
-jdk_nio3: $(call TestDirs, com/sun/nio sun/nio)
+jdk_nio3: $(call TestDirs, sun/nio)
 	$(call RunSamevmBatch)
 
 # All nio tests
 jdk_nio: jdk_nio1 jdk_nio2 jdk_nio3
 	@$(SummaryInfo)
 
+# Stable samevm testruns (minus items from PROBLEM_LIST)
+jdk_sctp: $(call TestDirs, com/sun/nio/sctp)
+	$(call RunSamevmBatch)
+
 # Stable othervm testruns (minus items from PROBLEM_LIST)
 #   Using samevm has serious problems with these tests
 JDK_ALL_TARGETS += jdk_rmi