Brotli: update Brotli to 222564a.

This update includes the following changes:

222564a Fix encoder (#472)
6a4bf43 Fix build with -Wconditional-uninitialized. (#471)
396309a Update (#470)

Change-Id: I4a28195dffe8878f90f27a405adf4cdbe7c481d2
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-on: https://nginx-review.googlesource.com/2680
Reviewed-by: Gurgen Hrachyan <gugo@google.com>
diff --git a/WORKSPACE b/WORKSPACE
index 5c6c510..fc6e449 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -26,7 +26,7 @@
 
 git_repository(
     name = "org_brotli",
-    commit = "5db62dcc9d386579609540cdf8869e95ad334bbd",  # 2016-11-09
+    commit = "222564a95d9ab58865a096b8d9f7324ea5f2e03e",  # 2016-12-02
     remote = "https://github.com/google/brotli.git",
 )
 
diff --git a/deps/brotli b/deps/brotli
index 5db62dc..222564a 160000
--- a/deps/brotli
+++ b/deps/brotli
@@ -1 +1 @@
-Subproject commit 5db62dcc9d386579609540cdf8869e95ad334bbd
+Subproject commit 222564a95d9ab58865a096b8d9f7324ea5f2e03e