[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/meta/meta-mediatek/recipes-bsp/bl33/files/lk_dts/lk.dts b/meta/meta-mediatek/recipes-bsp/bl33/files/lk_dts/lk.dts
new file mode 100644
index 0000000..7b1b06f
--- /dev/null
+++ b/meta/meta-mediatek/recipes-bsp/bl33/files/lk_dts/lk.dts
@@ -0,0 +1,12 @@
+/dts-v1/;
+/ {
+	model = "Keys";
+	compatible = "mediatek,auto2701evb2-ivi";
+	signature {
+		key-dev {
+			required = "conf";
+			algo = "sha256,rsa2048";
+			key-name-hint = "dev";
+		};
+	};
+};