bitbake: bitbake: doc/user-manual: Update the BB_HASHSERVE_UPSTREAM
(Bitbake rev: 0531ae3caaa0ff007d263964e4cdff3f7c8b25b9)
Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>