changelog: update with previous commit

Signed-off-by: James Almer <jamrial@gmail.com>
diff --git a/Changelog b/Changelog
index 4564611..cd95dda 100644
--- a/Changelog
+++ b/Changelog
@@ -2,6 +2,7 @@
 releases are sorted from youngest to oldest.
 
 version 3.3.6:
+- x264: Support version 153
 - avcodec/exr: Check buf_size more completely
 - avcodec/flacdec: Fix overflow in multiplication in decode_subframe_fixed()
 - avcodec/hevcdsp_template: Fix Invalid shifts in put_hevc_qpel_bi_w_h() and put_hevc_qpel_bi_w_w()