CP ICU fix for Locale canoncalization

https://chromium.googlesource.com/chromium/deps/icu.git/+log/8bb622..5c3a0b9

TBR=jshin@chromium.org

Bug: v8:10447
Change-Id: I715e375e6778a4ff038aedb3e35404e1a7ff91dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2582536Reviewed-by: Frank Tang <ftang@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835514}

DEPS

@@ -1065,7 +1065,7 @@ deps = {
     Var('chromium_git') + '/chromium/deps/hunspell_dictionaries.git' + '@' + '18e09b9197a3b1d771c077c530d1a4ebad04c167',
 
   'src/third_party/icu':
-    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '8bb622d674ec356faae54fbd1cb50f429cd5e02a',
+    Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '5c3a0b95802abf409c686ed3534dd46296c1dfb5',
 
   'src/third_party/icu4j': {
       'packages': [