Setting stack mode as skip to avoid the reboot of the system.

Resolves openbmc/openbmc-test-automation#752

Change-Id: I98b31b7fe5046fb325fbc2223e225af4966b9a2f
Signed-off-by: Sweta Potthuri <spotthur@in.ibm.com>
diff --git a/extended/test_esel.robot b/extended/test_esel.robot
index 2857927..3ba3c1e 100644
--- a/extended/test_esel.robot
+++ b/extended/test_esel.robot
@@ -18,6 +18,7 @@
 
 *** Variables ***
 
+${stack_mode}       skip
 ${RESERVE_ID}       raw 0x0a 0x42
 ${RAW_PREFIX}       raw 0x32 0xf0 0x