drm/i915/dram: replace __raw_uncore_read32() with intel_uncore_read_fw()

The __raw_uncore_* interface is supposed to be intel_uncore.[ch]
internal only. Replace the remaining outside user with
intel_uncore_read_fw(), which is essentially the same thing.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230627105849.274263-1-jani.nikula@intel.com

drivers/gpu/drm/i915/soc/intel_dram.c

@@ -704,7 +704,7 @@ void intel_dram_edram_detect(struct drm_i915_private *i915)
 	if (!(IS_HASWELL(i915) || IS_BROADWELL(i915) || GRAPHICS_VER(i915) >= 9))
 		return;
 
-	edram_cap = __raw_uncore_read32(&i915->uncore, HSW_EDRAM_CAP);
+	edram_cap = intel_uncore_read_fw(&i915->uncore, HSW_EDRAM_CAP);
 
 	/* NB: We can't write IDICR yet because we don't have gt funcs set up */