[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/meta/meta-clang/recipes-devtools/clang/common-source.inc b/meta/meta-clang/recipes-devtools/clang/common-source.inc
new file mode 100644
index 0000000..e7fb06f
--- /dev/null
+++ b/meta/meta-clang/recipes-devtools/clang/common-source.inc
@@ -0,0 +1,11 @@
+do_fetch() {
+        :
+}
+do_fetch[noexec] = "1"
+deltask do_unpack
+deltask do_patch
+
+SRC_URI = ""
+
+do_configure[depends] += "llvm-project-source-${PV}:do_patch"
+do_populate_lic[depends] += "llvm-project-source-${PV}:do_unpack"