Fix des key type issue in bosoprocs

Fix des key type issue in bosoprocs

The call to afsconf_AddKey was using 'akey' rather than 'akey->data'.
As data is the first element of the akey structure, these are actually
identical, but the compiler sees it as a type error. Fix to use the
correct name, and remove the warning inhibition.

Change-Id: Id4775a836276ddd6f5ae105c298dcc3c68b92145
Reviewed-on: http://gerrit.openafs.org/810
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>