The requests configuration has to be split so clients can inform
ICE laeyr when the request is completed.
Rename the 'config' callback to 'config_start' and add
'config_end' callback.
Change-Id: Ife0b5b62805b827449a1bb1002348db445f03c60
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Andrey Markovytch <andreym@codeaurora.org>