Adds the APM hooks into the generic pccard kernel files. With this code

Adds the APM hooks into the generic pccard kernel files.  With this code
in place device drivers can now register power-down/power-up routines so
that we can use common routines to power-up/power-down cards for
insert/removals, suspend/resume, etc..

Reviewed by:	phk
Submitted by:	the 'Nomads'