drm/stm: ltdc: No message if probe

Print display controller hardware version in debug mode only.
Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1559550694-14042-1-git-send-email-yannick.fertre@st.com

drivers/gpu/drm/stm/ltdc.c

@@ -1196,7 +1196,7 @@ int ltdc_load(struct drm_device *ddev)
 		goto err;
 	}
 
-	DRM_INFO("ltdc hw version 0x%08x - ready\n", ldev->caps.hw_version);
+	DRM_DEBUG_DRIVER("ltdc hw version 0x%08x\n", ldev->caps.hw_version);
 
 	/* Add endpoints panels or bridges if any */
 	for (i = 0; i < MAX_ENDPOINTS; i++) {