[PATCH v3 resend] i2c: designware: add reset interface

[Wolfram Sang]

On Tue, Dec 27, 2016 at 10:22:40PM +0800, Zhangfei Gao wrote:
> Some platforms like hi3660 need do reset first to allow accessing registers
> 
> Signed-off-by: Zhangfei Gao <zhangfei.gao at linaro.org>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
> Tested-by: Ramiro Oliveira <ramiro.oliveira at synopsys.com>

Applied to for-next, thanks!