qcms: Silence __force_align_arg_pointer__ warning on Armv8

third_party/qcms/README.chromium

 Name: Quick Color Management System
 Short Name: qcms
 URL: https://github.com/jrmuizel/qcms/tree/v4
 Version: v4
 Date: 2012-03-13
 License: MIT
 License File: src/COPYING
 Security Critical: yes
 
 Description:
 Contains support for applying an ICC color profile to an image.  The code is
 originally based on tinycms, re-written by Mozilla for better security and
 performance.  This copy is a source-drop from Mozilla on March 13, 2012.
 
 Local Modifications:
 Some files only have license headers in the master branch.
  - Added the same license headers to the versions brought down from the 'v4'
    branch src URL qcms/tree/v4
 The following changes have been made since qcms was imported:
  - Add bgra output support.
  - Use HAVE_POSIX_MEMALIGN instead of HAS_POSIX_MEMALIG
    (https://bugzilla.mozilla.org/show_bug.cgi?id=692922)
  - Applied upstream patch:
    - https://bug752254.bugzilla.mozilla.org/attachment.cgi?id=626102
  - Applied upstream patch for sanitizing gamma table:
    - Expanded gamma clamp range to allow 1.0.
  - Do not short-circuit bogus profile check for A2B0 or B2A0 unless v4 enabled.
  - Only reference code from transform-sse1.c and transform-sse2.c when SSE is
    enabled.
- - Do not use an x86-only attribute on ARM or MIPS.
+ - Limit the use an x86-only attribute to 32-bit x86 builds.
+   - https://code.google.com/p/chromium/issues/detail?id=490016
  - Fix integer truncation warning/errors on Win64 build.
  - Apply upstream thread safety (fix) patch from
    - https://bugzilla.mozilla.org/show_bug.cgi?id=853169
  - Apply upstream fix for qcms_profile_from_memory from
    - https://bugzilla.mozilla.org/show_bug.cgi?id=969226
  - Apply upstream simplification of qcmstypes.h
    - https://hg.mozilla.org/mozilla-central/rev/b5be94737a83
  - Check for unused tag_len in read_nested_curveType()
  - Apply qcms_transform_precacheLUT_float does not properly free dest buffer
    - https://bugzilla.mozilla.org/show_bug.cgi?id=701348
@@ skipping 21 matching lines @@
    - https://code.google.com/p/chromium/issues/detail?id=458024
  - Add vcgt tag reader and API to read its RGB gamma data
    - https://code.google.com/p/chromium/issues/detail?id=471749
  - Consolidate loop over channels and elements in VCGT parser
    - https://code.google.com/p/chromium/issues/detail?id=471749
  - Limit vcgt table to a maximum of 1024 entries
    - https://code.google.com/p/chromium/issues/detail?id=471749
 
 For the Chromium changes, since the import, in a patch format run:
   git diff b8456f38 src