mfd: lpss: Add Broxton ACPI IDs

Intel Broxton has the same LPSS block than Intel Sunrisepoint so add
Broxton ACPI IDs to the list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>