linux-imx

i2c-designware: move to managed functions (devm_*)

This makes the error handling much more simpler than open-coding everything
and in addition makes the probe function smaller and tidier.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>