patch_sync: Sort android patches

Android requests that patches are sorted. They use their own
__lt__ implementation in cherrypick_cl.py, which we should
leverage to keep the sorting stable and robust to
implementation details.

BUG=b:217767120
TEST=patch_sync transpose <...>

Change-Id: I3013b66c4552fd47052e15009df252cdcdc245ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/3440375
Reviewed-by: George Burgess <gbiv@chromium.org>
Reviewed-by: Pirama Arumuga Nainar <pirama@google.com>
Commit-Queue: Jordan Abrahams-Whitehead <ajordanr@google.com>
Tested-by: Jordan Abrahams-Whitehead <ajordanr@google.com>
2 files changed