drm: fix spelling mistake "intead" -> "instead"

There is a spelling mistake in a DRM_NOTE message. Fix this.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190217225554.17742-1-colin.king@canonical.com

drivers/gpu/drm/drm_kms_helper_common.c

@@ -39,7 +39,7 @@ MODULE_LICENSE("GPL and additional rights");
 /* Backward compatibility for drm_kms_helper.edid_firmware */
 static int edid_firmware_set(const char *val, const struct kernel_param *kp)
 {
-	DRM_NOTE("drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware intead.\n");
+	DRM_NOTE("drm_kms_firmware.edid_firmware is deprecated, please use drm.edid_firmware instead.\n");
 
 	return __drm_set_edid_firmware_path(val);
 }