i2c: dln2: Simplify return flow for dln2_i2c_enable
i2c: dln2: Simplify return flow for dln2_i2c_enable

This fixes the following kbuild test robot warning:

>> drivers/i2c/busses/i2c-dln2.c:70:1-4: WARNING: end returns can be simplified if negative or 0 value

Reported-by: kbuild test robot <24f7fe9d205c8a9f6ade0c2894e14303ca16087f@intel.com>
Reported-by: Julia Lawall <018ee4f95fc49739477deedb13d2cd210889e607@lip6.fr>
Signed-off-by: Octavian Purdila <77c06d0261d8d3a9171f87dd4ca9bbbd1924db77@intel.com>
Acked-by: Wolfram Sang <fd4ce474653598159cad06f3c83387a05cd53a44@the-dreams.de>
Signed-off-by: Lee Jones <630e34333487a351a857f6b705e04d30b37c1629@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs