Clean-up to avoid duplication and promote code reuse to factor
taskdata creation into a common function.
[RP: minor tweaks]
(Bitbake rev: 468c221449290c4f196e87f7d8e23fcd7db86135)
Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>