Build mac_permissions.xml with Soong

Bug: 33691272
Test: build and compare
Change-Id: Iacbd5bcf77f0b1c0b5e2c6691efb4c62bc78fdf8
diff --git a/build/soong/Android.bp b/build/soong/Android.bp
index d1cead3..99dd662 100644
--- a/build/soong/Android.bp
+++ b/build/soong/Android.bp
@@ -35,6 +35,7 @@
         "build_files.go",
         "cil_compat_map.go",
         "compat_cil.go",
+        "mac_permissions.go",
         "policy.go",
         "selinux.go",
         "selinux_contexts.go",