Adding Bazel build for the remaining YANG models.

Change-Id: I9fdd681e572a0d04547dd957a340580ad9fa4a43
diff --git a/models/l3vpn/BUILD b/models/l3vpn/BUILD
new file mode 100644
index 0000000..463f95b
--- /dev/null
+++ b/models/l3vpn/BUILD
@@ -0,0 +1,17 @@
+load("//tools/build/bazel:yang.bzl", "yang_model")
+
+COMPILE_DEPS = [
+    "//models/common:onos-models-common",
+]
+
+APPS = [
+    "org.onosproject.models.common",
+]
+
+yang_model(
+    app_name = "org.onosproject.models.l3vpn",
+    title = "L3VPN YANG Models",
+    custom_registrator = True,
+    deps = COMPILE_DEPS,
+    required_apps = APPS,
+)