Add perf variable to enable or skip performance keyword execution

Change-Id: I0c48ae21ce5c33d62e2a49898ce67e3b3408d1af
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/common_utils.robot b/lib/common_utils.robot
index 111acfa..6111117 100755
--- a/lib/common_utils.robot
+++ b/lib/common_utils.robot
@@ -62,12 +62,16 @@
 @{valid_power_policy_vars}        RESTORE_LAST_STATE  ALWAYS_POWER_ON
 ...                               ALWAYS_POWER_OFF
 
+${check_performance}              ${1}
+
 
 *** Keywords ***
 
 Check BMC Performance
     [Documentation]  Check BMC basic CPU Mem File system performance.
 
+    Return From Keyword If   not ${check_performance}
+
     Check BMC CPU Performance
     Check BMC Mem Performance
     Check BMC File System Performance
@@ -583,14 +587,14 @@
 Check BMC CPU Performance
     [Documentation]   Minimal 10% of proc should be free in 3 sample
     :FOR  ${var}  IN RANGE  1  4
-    \     BMC CPU Performance check
+    \     BMC CPU Performance Check
 
 
 Check BMC Mem Performance
     [Documentation]   Minimal 10% of memory should be free
 
     :FOR  ${var}  IN RANGE  1  4
-    \     BMC Mem Performance check
+    \     BMC Mem Performance Check
 
 
 Check BMC File System Performance