Update Unicode emoji files for emoji 11

Test: m fontchain_lint
Test: Visual test with a build and sample app
Bug: 77148691
Change-Id: Ie51606cdbfc575221232f971060b0fb0ecb07954
(cherry picked from commit badb48b262348922547e79974a8359f424decd00)
diff --git a/README.android b/README.android
index 418f40c..8befc17 100644
--- a/README.android
+++ b/README.android
@@ -1,6 +1,6 @@
 URL: http://www.unicode.org/Public/10.0.0/ucd/
-URL: http://www.unicode.org/Public/emoji/5.0/
-Version: Unicode 10.0.0 beta and emoji 5.0 beta
+URL: http://www.unicode.org/Public/emoji/11.0/
+Version: Unicode 10.0.0 beta and emoji 11.0
 License: Unicode
 License File: NOTICE