ACPICA: Add support for _DSC as per ACPI 6.5

ACPICA commit a597e3b247df72aec0f6e056c95abe2d973ac10c

Link: https://github.com/acpica/acpica/commit/a597e3b2Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/acpica/acpredef.h

@@ -440,6 +440,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 	{{"_DOS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
 	  METHOD_NO_RETURN_VALUE}},
 
+	{{"_DSC", METHOD_0ARGS,
+	  METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
 	{{"_DSD", METHOD_0ARGS,	/* ACPI 6.0 */
 	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Pkgs) each: 1 Buf, 1 Pkg */
 	PACKAGE_INFO(ACPI_PTYPE2_UUID_PAIR, ACPI_RTYPE_BUFFER, 1,