media: iris: Call correct power off callback in cleanup path

Driver implements different callbacks for the power off controller
(.power_off_controller):

- iris_vpu_power_off_controller,
- iris_vpu33_power_off_controller,

The generic wrapper for handling power off - iris_vpu_power_off() -
calls them via 'iris_platform_data->vpu_ops', so shall the cleanup code
in iris_vpu_power_on().

This makes also sense if looking at caller of iris_vpu_power_on(), which
unwinds also with the wrapper calling respective platfortm code (unwinds
with iris_vpu_power_off()).

Otherwise power off sequence on the newer VPU3.3 in error path is not
complete.

Fixes: c69df5de4ac3 ("media: platform: qcom/iris: add power_off_controller to vpu_ops")
Cc: [e-mail]
Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Vikash Garodia <[e-mail]>
Reviewed-by: Bryan O'Donoghue <[e-mail]>
Signed-off-by: Bryan O'Donoghue <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/qcom/iris/iris_vpu_common.c

···
 	return 0;
 
 err_power_off_ctrl:
-	iris_vpu_power_off_controller(core);
+	core->iris_platform_data->vpu_ops->power_off_controller(core);
 err_unvote_icc:
 	iris_unset_icc_bw(core);
 err: