Soong module selinux compat maps

And migrate 26.0.cil and 27.0.cil build targets from Android.mk to
Android.bp

Bug: 33691272
Test: 26.0.cil and 27.0.cil mapping files on the device are unchanged.
Change-Id: Id0ea45c149e096996bc0657615ea98915df3c9e1
diff --git a/build/soong/Android.bp b/build/soong/Android.bp
new file mode 100644
index 0000000..0f21be3
--- /dev/null
+++ b/build/soong/Android.bp
@@ -0,0 +1,25 @@
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+bootstrap_go_package {
+    name: "soong-selinux",
+    pkgPath: "android/soong/selinux",
+    deps: [
+        "soong-android",
+    ],
+    srcs: [
+        "cil_compat_map.go",
+    ],
+    pluginFor: ["soong_build"],
+}