ACPI / EC: Update acpi_ec_is_gpe_raised() with new GPE status flag.

This patch updates acpi_ec_is_gpe_raised() according to the following
commit:
  Commit: 09af8e82
  Subject: ACPICA: Events: Add support to return both enable/status register values for GPE and fixed event.
This is actually a no-op change as both the flags are defined to a same
value.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>