8037483: issue with the crypto / sec zip unzipping in the jdk8 build

Reviewed-by: ihse
diff --git a/jdk/make/Import.gmk b/jdk/make/Import.gmk
index 46c64d4..92d4d1d 100644
--- a/jdk/make/Import.gmk
+++ b/jdk/make/Import.gmk
@@ -252,7 +252,7 @@
 	$(ECHO) Unzipping $(<F)
 	$(MKDIR) -p $(@D)
 	$(RM) $@
-	($(CD) $(JDK_OUTPUTDIR) && $(UNZIP) $< > $@.tmp)
+	($(CD) $(JDK_OUTPUTDIR) && $(UNZIP) -q -o $< > $@.tmp)
 	$(MV) $@.tmp $@
 endef