BMC dump core size test not applicable for GA1

Changes:
    - Add BMC dump core size test in skip list.

Change-Id: Iff3cc39d5253311d2fd2e772477e38acc23e46a1
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/test_lists/witherspoon/skip_test_witherspoon_GA1 b/test_lists/witherspoon/skip_test_witherspoon_GA1
index e9de3a7..2a5c961 100755
--- a/test_lists/witherspoon/skip_test_witherspoon_GA1
+++ b/test_lists/witherspoon/skip_test_witherspoon_GA1
@@ -39,3 +39,5 @@
 -e Set_Asset_Tag_With_Valid_String_Length_Via_REST
 -e OCC_Active_Enable_And_Disable
 -e SDR_Test
+# NA for GA1 service pack.
+-e Verify_Core_Dump_Size