Fix FOR loop syntax and typo in code documentation

Change-Id: I5628f2de61924286cde2664a64ff54e0414eb0e4
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/bmc_network_utils.robot b/lib/bmc_network_utils.robot
index 9ac2af1..6e6860a 100644
--- a/lib/bmc_network_utils.robot
+++ b/lib/bmc_network_utils.robot
@@ -725,7 +725,7 @@
     [Arguments]  ${channel_list}  ${channel_config_json}
 
     # Description of Arguments
-    # ${channel_list}  -  list Contains all availabe active channels.
+    # ${channel_list}        - list Contains all available active channels.
     # ${channel_config_json} - output of /usr/share/ipmi-providers/channel_config.json file.
 
     FOR  ${channel_number}  ${values}  IN  &{channel_config_json}