Move android/soong/fs to android/soong/finder/fs

The fs package is specific to finder, move it inside finder.

Bug: 70897635
Test: m checkbuild
Change-Id: Ie705f064a832141702a8e87fd59ed75c01018504
diff --git a/finder/fs/Android.bp b/finder/fs/Android.bp
new file mode 100644
index 0000000..fe0a0d3
--- /dev/null
+++ b/finder/fs/Android.bp
@@ -0,0 +1,36 @@
+// Copyright 2017 Google Inc. All rights reserved.
+//
+// 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.
+
+//
+// mock filesystem
+//
+
+bootstrap_go_package {
+    name: "soong-finder-fs",
+    pkgPath: "android/soong/finder/fs",
+    srcs: [
+        "fs.go",
+    ],
+    darwin: {
+        srcs: [
+            "fs_darwin.go",
+        ],
+    },
+    linux: {
+        srcs: [
+            "fs_linux.go",
+        ],
+    },
+}
+