kernel/acpi: i386 build fixes.
Update the pciconf(8) database.

May 13, 2014 snapshot from http://pciids.sourceforge.net/
kernel/ral: Bring in support for further chips (RT2700/2800/3090 series).

Unfortunately I don't have any hardware to test and no one volunteered
when I asked on the lists. Pushing anyway because it shouldn't break
RT2500/2501/2600 support. We'll see if someone reports issues with
it.