drm/i915: s/9/intel_freq_opcode(450)/

Replace the hardcoded 9 with a call to intel_freq_opcode(450).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed