mfd: da903x: Simplify function return logic
mfd: da903x: Simplify function return logic

The invoked function already returns zero on success or a negative
errno code so there is no need to open code the logic in the caller.

Signed-off-by: Javier Martinez Canillas <828c1a17681e8566a17a1a4801ea67306010b273@osg.samsung.com>
Acked-by: Adam Thomson <313e0c15281ce7d11de2ea6827bd342763ae0515@diasemi.com>
Signed-off-by: Lee Jones <630e34333487a351a857f6b705e04d30b37c1629@linaro.org>

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