ACPICA: Add support for region address conflict checking

Allows drivers to determine if any memory or I/O addresses
will conflict with addresses used by ACPI operation regions.
Introduces a new interface, acpi_check_address_range.

http://marc.info/?t=132251388700002&r=1&w=2



Reported-and-tested-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>