Update pflash new command option

Change-Id: I876740e957e53a50c5fdfc8d6c8f6a6483cd4430
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/utils.robot b/lib/utils.robot
index 8f6db0b..374f5ef 100755
--- a/lib/utils.robot
+++ b/lib/utils.robot
@@ -82,6 +82,10 @@
     # FFS: Flash header not found. Code: 100
     # Error 100 opening ffs !
 
+    ${stdout}  ${stderr}  ${rc}=
+    ...  BMC Execute Command  /usr/sbin/pflash -h | egrep skip  ignore_err=${1}
+    ${pflash_cmd}=  Run Keyword if  ${rc} == ${0}
+    ...  Catenate  SEPARATOR=  ${pflash_cmd}  --skip=4096
     ${pnor_info}=  BMC Execute Command  ${pflash_cmd}
     Should Not Contain Any  ${pnor_info}  Flash header not found  Error