Add encode to bzl include paths

NOTRY=true

Bug: skia:
Change-Id: Ib37b9a0a5b3c07b0b78b389bd3003c350b49b53f
Reviewed-on: https://skia-review.googlesource.com/16232
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/public.bzl b/public.bzl
index d6749e9..1813af0 100644
--- a/public.bzl
+++ b/public.bzl
@@ -421,6 +421,7 @@
     "include/config",
     "include/core",
     "include/effects",
+    "include/encode",
     "include/gpu",
     "include/images",
     "include/pathops",