[PATCH] net/wan: add MODULE_LICENSE for fsl_ucc_hdlc

[David Miller]

From: Valentin Longchamp <valentin.longchamp at keymile.com>
Date: Fri, 17 Feb 2017 11:31:22 +0100

> It is required to build it as a module.
> 
> Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>

Applied to net-next.