This patch moves the resource parsing functions from support.c to the
pnpbios driver.  Originally these functions were intended for other
pnp protocols but in reality they are only used by the PnPBIOS driver.
This patch greatly cleans up the code in both the parsing functions
and their connection with the pnpbios driver.  Also note that
pnpbios.h has been added for local pnpbios functions.