rxkad heimdal cleanup

rxkad heimdal cleanup

don't assume every system have uint16_t and uint32_t;
instead massage for use of native afs types.

Reviewed-on: http://gerrit.openafs.org/2334
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit af5c302f0da739a70777980fd4ab7f9490ae51c3)

Change-Id: Ie2d4f066978f26b82b744b0d5034d9a8d09a985b
Reviewed-on: http://gerrit.openafs.org/3585
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>