BaseTools/Scripts/PatchCheck.py: Do not use mailmap

BaseTools/Scripts/PatchCheck.py: Do not use mailmap

We check the author/committer name/email are properly displayed
since commits 8ffa47fb3ab..c0328cf3803. However if PatchCheck.py
uses the mailmap, it will check sanitized names/emails.
Use the --no-use-mailmap option so PatchCheck.py will check
unsanitized input.

Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>