uncrypt: Move to Soong.

Test: mmma -j bootable/recovery
Change-Id: I405f2a70f51904c02c49a287c23cbc115a4c5132
diff --git a/Android.bp b/Android.bp
index 22407e0..f8c6a4b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -4,4 +4,5 @@
     "edify",
     "otafault",
     "otautil",
+    "uncrypt",
 ]