ACPICA: Remove extraneous error message for large number of GPEs.

Fixes a problem where an extraneous error message was emitted during
initialization if there is a GPE block larger than 255 bits. Any
GPE block larger than 120 GPEs could generate the error.

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