ACPICA: Update the _CPC definition to match ACPI 6.6

Update the _CPC definition to also support return package sub-type of
a Package (with Integer and Buffer) as per ACPI Spec 6.6.

Link: acpica/acpica@17a761944cc2
Signed-off-by: Saket Dumbre <saket.dumbre@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2829238.mvXUDI8C0e@rafael.j.wysocki

Author: SaketADumbre

drivers/acpi/acpica/acpredef.h

@@ -379,8 +379,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 
 	{{"_CPC", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Ints/Bufs) */
-	PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0,
-		     0, 0, 0),
+	PACKAGE_INFO(ACPI_PTYPE1_VAR,
+		     ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER |
+		     ACPI_RTYPE_PACKAGE, 0, 0, 0, 0),
 
 	{{"_CR3", METHOD_0ARGS,	/* ACPI 6.0 */
 	  METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},