defect 4264: fix issue in configib postscript to make it only touch the ifcfg-* files which are passed in from command line params

xCAT/postscripts/configib

@@ -147,9 +147,12 @@ then
     else
          dir="/etc/sysconfig/network-scripts"
     fi
-    #`rm -f $dir/ifcfg-$nic` 2>&1 1>/dev/null
-    # nic aliases
-    `rm -f $dir/ifcfg-ib*` 2>&1 1>/dev/null
+
+    # remove the nic configuration files which are included in $NIC_IBNICS
+    for nic in echo "$NIC_IBNICS" | tr "," "\n"
+    do
+        rm -f $dir/ifcfg-$nic 2>&1 1>/dev/null
+    done
 else
     loop_number=`lsdev | grep "IP over Infiniband Network Interface" | wc -l`
     num=0