Add IPMI cipher default in tox.ini profile

and https://gerrit.openbmc-project.xyz/#/c/10387/ changes bellow

IPMI cipher level integrity test

Changes:
     - Added test to execute all cipher supported level.
     - Added local IPMI test suite keyword to execute command
       with a given cipher level value.
     - Added new IPMI_CIPHER_LEVEL global variable.
     - Added new default  variable IPMI_CIPHER_LEVEL and set
       value to 3.
     - Added IPMI chipher supported list variable.

Change-Id: Ib8083c55028cea31275df46594cde7c187d36496
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/ipmi_client.robot b/lib/ipmi_client.robot
index 60c5a45..591919c 100755
--- a/lib/ipmi_client.robot
+++ b/lib/ipmi_client.robot
@@ -15,9 +15,9 @@
 ${netfnByte}=          ${EMPTY}
 ${cmdByte}=            ${EMPTY}
 ${arrayByte}=          array:byte:
-${IPMI_EXT_CMD}=       ipmitool -I lanplus -C 3
+${IPMI_EXT_CMD}=       ipmitool -I lanplus -C ${IPMI_CIPHER_LEVEL}
 ${IPMI_USER_OPTIONS}   ${EMPTY}
-${IPMI_INBAND_CMD}=    ipmitool -C 3
+${IPMI_INBAND_CMD}=    ipmitool -C ${IPMI_CIPHER_LEVEL}
 ${HOST}=               -H
 ${RAW}=                raw