toaster: modified list of dependencies
Removed dependency to argparse and wsgiref as they're in
standard python library.
wsgiref crashes during installation with python 3 as it's not
compatible with python 3.
Added dependency to pytz as it's used in the toaster code.
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>