8218599: Add test group jdk_client_sanity under jdk_desktop group

Reviewed-by: serb, prr
diff --git a/test/jdk/TEST.groups b/test/jdk/TEST.groups
index f8b9bed..9bb5f7b 100644
--- a/test/jdk/TEST.groups
+++ b/test/jdk/TEST.groups
@@ -375,7 +375,8 @@
     :jdk_swing \
     :jdk_sound \
     :jdk_imageio \
-    :jfc_demo
+    :jfc_demo \
+    :jdk_client_sanity
 
 # SwingSet3 tests.
 jdk_client_sanity = \