ACPI_SUCCESS is defined as:
#define ACPI_SUCCESS(a)			(!(a))

There is no need for the the double ! since there is already a macro
defined for failures: ACPI_FAILURE()
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>