Add additional files to import from Heimdal

Add additional files to import from Heimdal

Import more RFC3961 crypto definitions from Heimdal, so we can
support a wider variety of encryption algorithms

Also pick up the new mkdir, otherwise we get linker errors.

Change-Id: I5dfe705d3957b646ae05a0e06da1f0f2cfb60e75
Reviewed-on: http://gerrit.openafs.org/10044
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Simon Wilkinson <simonxwilkinson@gmail.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>