ACPICA: Remove obsolete Flags parameter.

Remove flags parameter for acpi_{get,set}_register().
It is no longer necessary now that these functions use a
spinlock for mutual exclusion.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c
index 9c7df71..dbcc4c0 100644
--- a/drivers/acpi/hardware/hwacpi.c
+++ b/drivers/acpi/hardware/hwacpi.c
@@ -171,8 +171,7 @@
 		return_UINT32(ACPI_SYS_MODE_ACPI);
 	}
 
-	status =
-	    acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value, ACPI_MTX_LOCK);
+	status = acpi_get_register(ACPI_BITREG_SCI_ENABLE, &value);
 	if (ACPI_FAILURE(status)) {
 		return_UINT32(ACPI_SYS_MODE_LEGACY);
 	}