Add PNP info to the PCI attahement of the puc driver.

Adjust sys/conf/files and sys/modules/puc/Makefile to omit
pucdata.c now tht it's included by puc_pci.c.

Submitted by: Lakhan Shiva Kamireddy (with build fixes by me)
Pull Request: https://github.com/freebsd/freebsd/pull/136