Add HuanCun as submodule for L2L3-unit-test

Author: zhanglinjuan

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "utility"]
 	path = utility
 	url = https://github.com/OpenXiangShan/utility
+[submodule "HuanCun"]
+	path = HuanCun
+	url = https://github.com/OpenXiangShan/HuanCun.git

HuanCun

@@ -91,6 +91,12 @@ object utility extends SbtModule with ScalafmtModule with CommonModule {
    override def moduleDeps = super.moduleDeps ++ Seq(rocketchip)
  }
 
+object huancun extends SbtModule with ScalafmtModule with CommonModule {
+  override def millSourcePath = os.pwd / "HuanCun"
+  override def moduleDeps = super.moduleDeps ++ Seq(
+    rocketchip, utility
+  )
+}
 
 object CoupledL2 extends SbtModule with ScalafmtModule with CommonModule {
 
@@ -102,7 +108,7 @@ object CoupledL2 extends SbtModule with ScalafmtModule with CommonModule {
     getVersion("chiseltest"),
   )
 
-  override def moduleDeps = super.moduleDeps ++ Seq(rocketchip, utility)
+  override def moduleDeps = super.moduleDeps ++ Seq(rocketchip, utility, huancun)
 
   object test extends Tests {
     override def ivyDeps = super.ivyDeps() ++ Agg(