drm/amd: Use `amdgpu_ucode_release` helper for si

The `amdgpu_ucode_release` helper is replacing all calls
to release_firmware.
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: NMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c

@@ -7714,20 +7714,13 @@ static int si_dpm_init_microcode(struct amdgpu_device *adev)
 	}
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_smc.bin", chip_name);
-	err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
-	if (err)
-		goto out;
-	err = amdgpu_ucode_validate(adev->pm.fw);
-
-out:
+	err = amdgpu_ucode_request(adev, &adev->pm.fw, fw_name);
 	if (err) {
 		DRM_ERROR("si_smc: Failed to load firmware. err = %d\"%s\"\n",
 			  err, fw_name);
-		release_firmware(adev->pm.fw);
-		adev->pm.fw = NULL;
+		amdgpu_ucode_release(&adev->pm.fw);
 	}
 	return err;
-
 }
 
 static int si_dpm_sw_init(void *handle)