mfd: lpc_sch: Ignore resource conflicts when adding mfd cells

Currently probe of lpc_sch fails on Intel Poulsbo because of ACPI resource
conflicts. A solution is to  set the ignore_resource_conflicts flag in the mfd cells.

Tested-by: Andreas Werner <andreas.werner@men.de>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>