SetUserName to return success - for same user name

Updated code to return IPMI_CC_OK, if set user name is requested
to update with the same name for the user id.

Unit-Test:
Verified set user name for same user id with same name succeeds twice
Verified negative case too.
ipmitool -I lanplus -H xx.xx.xx.xx -U root -P 0penBmc user set name 2 test
ipmitool -I lanplus -H xx.xx.xx.xx -U root -P 0penBmc user set name 2 test

Change-Id: I31c45a3f02ea5de535a27ddfd159b1b6fa4a4b1a
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
1 file changed