Darwin support for Finder

Bug: 62455338

Test: m -j # while on Mac

Change-Id: Ib63e8e10bddcb3b507878364218273e8a5a8aa82
diff --git a/fs/Android.bp b/fs/Android.bp
index 68cb88d..f4706ca 100644
--- a/fs/Android.bp
+++ b/fs/Android.bp
@@ -22,6 +22,15 @@
     srcs: [
         "fs.go",
     ],
+    darwin: {
+        srcs: [
+            "fs_darwin.go",
+        ],
+    },
+    linux: {
+        srcs: [
+            "fs_linux.go",
+        ],
+    },
 }
 
-