Revert "Revert "Cacheable, multithreaded finder.""

Bug: 62455338
Test: m -j

This reverts commit d1abeb9d982b11fdf4047176d213acc8197c375f.

Change-Id: I9f73031636157511b5f1c6ce8a205e9bc91669ff
diff --git a/Android.bp b/Android.bp
index 82be0fa..0c79bf5 100644
--- a/Android.bp
+++ b/Android.bp
@@ -2,6 +2,8 @@
     "androidmk",
     "bpfix",
     "cmd/*",
+    "fs",
+    "finder",
     "third_party/zip",
     "ui/*",
 ]