ARM: OMAP2+: omap_device: Replace dev_warn by dev_dbg in omap_device_build_from_dt

This warning becomes a little bit too verbose with the increase of
device nodes in some DTS files.

Change it to debug only.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>

arch/arm/plat-omap/omap_device.c

@@ -348,7 +348,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
 
 	oh_cnt = of_property_count_strings(node, "ti,hwmods");
 	if (!oh_cnt || IS_ERR_VALUE(oh_cnt)) {
-		dev_warn(&pdev->dev, "No 'hwmods' to build omap_device\n");
+		dev_dbg(&pdev->dev, "No 'hwmods' to build omap_device\n");
 		return -ENODEV;
 	}