drm/i915/huc: Simplify intel_huc_init_hw()

drm/i915/huc: Simplify intel_huc_init_hw()

On last guc/huc cleanup series we've simplified guc init hw
function but missed the one for the huc. While here, change
its signature as we don't care about huc loading status.

Signed-off-by: Michal Wajdeczko <[email protected]>
Cc: Anusha Srivatsa <[email protected]>
Cc: Arkadiusz Hiler <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Reviewed-by: Anusha Srivatsa <[email protected]>
Signed-off-by: Tvrtko Ursulin <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]