Fix Task related issue when creating a bmc dump

This commit fixes the issue where, while creating a
bmc dump, the task was not being sent back to the
redfish client as the response.

Signed-off-by: Asmitha Karunanithi <asmitk01@in.ibm.com>
Change-Id: Id3d6466c5bfc04aa44a66f53e35c4ea28f8ae25b