(factory-2305.B)hwid_tool: Improve debug output on HWID unmatch.

To provide complete information on what has been matched and why other data
failed, we should provide more messages for match results.

(cherry-pick from https://gerrit.chromium.org/gerrit/#change,24177)

BUG=chrome-os-partner:10002
TEST=gooftool -v 4 verify_hwid

Change-Id: I2184b93c328c5f6c659755a311913e01b57ecdb7
Reviewed-on: https://gerrit.chromium.org/gerrit/24213
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Jay Kim <yongjaek@chromium.org>
Tested-by: Jay Kim <yongjaek@chromium.org>