video: tegra: host: Clear intr list at intr_put

Process wait list when removing a waiter. This clears the interrupt
once it is no longer needed.

Bug 1031724

Change-Id: Ifb46672f70c8bbd6359d0a8aeaac0d718a5394b2
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/125230
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>

Conflicts:
	drivers/video/tegra/host/host1x/host1x_intr.c