drm/i915/dmc: define firmware URL locally

Avoid the dependency on intel_uc_fw.h, and allow removal of xe compat
intel_uc_fw.h. If there needs to be duplication of the URL, at least
have the duplication in a sensible way.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/15935837a0c15f861bb2a688cc53514f47153ef3.1712345787.git.jani.nikula@intel.comSigned-off-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -38,6 +38,8 @@
  * low-power state and comes back to normal.
  */
 
+#define INTEL_DMC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git"
+
 enum intel_dmc_id {
 	DMC_FW_MAIN = 0,
 	DMC_FW_PIPEA,
@@ -953,7 +955,7 @@ static void dmc_load_work_fn(struct work_struct *work)
 			   " Disabling runtime power management.\n",
 			   dmc->fw_path);
 		drm_notice(&i915->drm, "DMC firmware homepage: %s",
-			   INTEL_UC_FIRMWARE_URL);
+			   INTEL_DMC_FIRMWARE_URL);
 	}
 
 	release_firmware(fw);

drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h

@@ -26,7 +26,6 @@
 #include "i915_utils.h"
 #include "intel_gt_types.h"
 #include "intel_step.h"
-#include "intel_uc_fw.h"
 #include "intel_uncore.h"
 #include "intel_runtime_pm.h"
 #include <linux/pm_runtime.h>

drivers/gpu/drm/xe/compat-i915-headers/intel_uc_fw.h

-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2023 Intel Corporation
- */
-
-#ifndef _INTEL_UC_FW_H_
-#define _INTEL_UC_FW_H_
-
-#define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git"
-
-#endif