video: tegra: host: fix compile warnings

video: tegra: host: fix compile warnings

The definition for function pointer nvhost_channel_ops.set_priority() changed
to match the usage by other function definitions.

Change-Id: I4e45fd7871c2c54bebffdfd7200e595d45152a56
Signed-off-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-on: http://git-master/r/328430
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>