patches to make bind9 with TKEY/GSS updates easier to configure

[Michael Graff]

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I found my problem.  The binary files for the ccache and keytab were not
generated when applying the patch.

With those three files in place, the test passes, as long as I also do
- --with-randomdev=/dev/urandom

If I leave it to use /dev/random, it runs very, very slowly.

I don't think we can "fix" this as it was likely already broken.  Do
people just use /dev/urandom and pray, or do most people have hardware
assisted RNGs these days and I'm just behind the times?

- --Michael

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