!243 dts: update metadef submodule

Merge pull request !243 from zhengyuanhua/development
dts: update metadef submodule
--- a/+ 1
+++ b/+ 1
@@ -1 +1 @@
 Subproject commit 40e2d5c974eda1d1f5716b18fc776dede7da4370
 Subproject commit 9d3f0444b1e13e6a3c9d498963f8232f439a0f47
Author	SHA1	Message	Date
i-robot	fc02ad76d2	!243 dts: update metadef submodule Merge pull request !243 from zhengyuanhua/development	4 years ago
zhengyuanhua	50c0fbff69	dts: update metadef submodule	4 years ago