sys: Remove $FreeBSD$: one-line .c patternRemove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
viapm: Remove unused devclass arguments to DRIVER_MODULE.
Remove unused smbus_devclass.
Remove unused iicbb_devclass.
Remove isa_devclass from ISA bus drivers.
viapm: clean up empty lines in .c and .h files
Move all the power management (SMBus) drivers to their own directory,away from sys/pci.