Change the channel worker to use nvgpu_cond instead of Linux wait
queue.
JIRA NVGPU-14
Change-Id: Iac856dca2acfa80065f5d2fd542cd2a6278333a4
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1469850
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Lakshmanan M <lm@nvidia.com>