Cherry-pick a upstream patch for a data loading bug

README.chromium

 Name: icu
 URL: http://site.icu-project.org/
 Version: 54.1
 License: MIT
 Security Critical: yes
 
 Description:
 This directory contains the source code of ICU 54.1 for C/C++.
 
 
@@ skipping 32 matching lines @@
        a. Use Japanese rules for all locales because Japanese tailoring only
           affects Japanese specific characters.
           See http://unicode.org/cldr/trac/ticket/3974
        b. Minor changes in CL, OP and IS definitions to handle 'comma-variants'
           more consistenly.
           See http://unicode.org/cldr/trac/ticket/6557
        c. Fix line breaking for Chinese characters and quotation marks
           See http://unicode.org/cldr/trac/ticket/4200 and
               http://crbug.com/39779
 
-
    - Add a new file brklocal.mk (copied from brkfiles.mk) with line_ja.txt
      and word_POSIX.txt dropped from the build list.
 
    - Apply patches/khmer-dictbe.patch and put in a smaller Khmer dictionary
      (source/data/brkitr/khmerdict.txt) obtained from
      http://bugs.icu-project.org/trac/ticket/9451
 
    - Add several common Chinese words that were dropped previously to
      source/data/cjdict/brkitr/cjdict.txt
      patch: patches/cjdict.patch
@@ skipping 236 matching lines @@
    - patches/ucnv_refcount.patch
    - upstream change:
      http://bugs.icu-project.org/trac/ticket/11601
 
 18. Apply patches/infinite-recursion.patch , corresponds to upstream r36672
 
 19. Fix a data race in umutex
    - patches/mutex.patch
    - upstream bug (fixed in ToT and will be included in 56)
      http://bugs.icu-project.org/trac/ticket/11599
+
+20. Cherry-pick an upstream patch for a data loading bug.
+   - patches/dataload.patch
+   - upstream change (fixed in ToT and will be included in 56)
+     http://bugs.icu-project.org/trac/changeset/37670