msm: camera: icp: Avoid accessing released memory in abort/destroy

In abort and destroy functions there are chances of accessing released
memory if timeout happens and work is not scheduled. To handle this,
removed the workqueue and submitted command directly to FW.

Change-Id: I2eccb47d5db29fe0cb5fb8426812b33c961f365b
Signed-off-by: Alok Pandey <akumarpa@codeaurora.org>