ACPICA: Module-level code: enable _REG execution in same scope

This change enables the execution of _REG methods that appear
in the same scope as the module-level code, in resonse to an
operation region declaration within the module-level code.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index 9c3cdbe..d622ba7 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -165,7 +165,7 @@
 
 				obj_desc->method.method_flags =
 				    AML_METHOD_INTERNAL_ONLY;
-				obj_desc->method.implementation =
+				obj_desc->method.extra.implementation =
 				    acpi_ut_osi_implementation;
 #endif
 				break;