i2c: designware: Drop return value from dw_i2c_of_configure()

i2c: designware: Drop return value from dw_i2c_of_configure()

dw_i2c_of_configure() is called without checking of the returned
value, hence just drop it by converting to void.

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>