Enhance ACPI resource parsing interfaces to support sparse IO space,
which will be used to share common code between x86 and IA64 later.
Tested-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NJiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: NHanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>