Don't load ccp automatically with devmatch

Remove the PNP info for the moment from the driver. It's an
experimental driver (as noted in r328150). It's performance is about
1/10th that of aesni. It will often panic when used with GELI (PR
2279820). It's not in our best interest to have such a driver be
autoloaded by default.

Approved by: re@ (rgrimes)
Reviewed By: cem@
Differential Review: https://reviews.freebsd.org/D16959