Trying to use a server with username and password authentication
within the URL of the SRC_URI variable doesn't appear to work.
This patch adds the missing parts to the hg fetcher to make this
work properly.
(Bitbake master rev: dc3d6d73e44802c203b3f7247f6f212acc2f69bf)
(Bitbake rev: 76b50d0d72c4e2b03fc53fade255e87c1922e88d)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>