[PATCH] ARM: mach-imx: sdhci-esdhc-imx: initialize DMA mask

[Shawn Guo]

On Mon, Apr 11, 2016 at 10:20:46AM +0200, Alexander Kurz wrote:
> With commit 7b91369b DMA access got disabled for device drivers with zero
> DMA mask property. sdhci-esdhc-imx got blocked from DMA access by this.
> Hence: initialize the dma mask to enable access again.
> 
> Signed-off-by: Alexander Kurz <akurz at blala.de>

I fixed up the commit log per comments from Uwe and Sergei, and then
applied the patch as a fix for v4.6-rc.

Shawn