Raise 401 for invalid credentials
Raise 401 for invalid credentials

Change-Id: Ie41b568aa45b1f09b0940e5ee1b3472a46b08db1
Resolves: openbmc/phosphor-rest-server#25
Signed-off-by: Brad Bishop <713d098c0be4c8fd2bf36a94cd08699466677ecd@fuzziesquirrel.com>

openbmc/phosphor-rest-server,openbmc/phosphor-rest-server