drm/i915/dmc: switch to intel_de_* register accessors in display code

Avoid direct uncore use in display code.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bc144ab3565b10e71244cd09f72ce7df86f4b5c6.1670433372.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_dmc.c

@@ -433,9 +433,9 @@ void intel_dmc_load_program(struct drm_i915_private *dev_priv)
 
 	for (id = 0; id < DMC_FW_MAX; id++) {
 		for (i = 0; i < dmc->dmc_info[id].dmc_fw_size; i++) {
-			intel_uncore_write_fw(&dev_priv->uncore,
-					      DMC_PROGRAM(dmc->dmc_info[id].start_mmioaddr, i),
-					      dmc->dmc_info[id].payload[i]);
+			intel_de_write_fw(dev_priv,
+					  DMC_PROGRAM(dmc->dmc_info[id].start_mmioaddr, i),
+					  dmc->dmc_info[id].payload[i]);
 		}
 	}