[PATCH v2] serial: imx: enable the clocks for console

[Shawn Guo]

On Sun, Jun 09, 2013 at 10:01:19AM +0800, Huang Shijie wrote:
> The console's clocks are disabled after the uart driver is probed.
> It makes that we can see less log from the console now
> (though we still can get all the log by the `dmesg`).
> 
> So enable the clocks for console, and we can see all the log again.
> 
> This patch also disables the sport->clk_per when we fail to enable
> the sport->clk_ipg;
> 
> Signed-off-by: Huang Shijie <b32955 at freescale.com>

Tested-by: Shawn Guo <shawn.guo at linaro.org>