gpio: 104-idi-48: improve code indentation

Address code indentation warning messages by checkpatch script. Combine
split function parameters on one line. This also resolves the "use tabs
instead of space" warning by checkpatch script.

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>

Link: https://lore.kernel.org/r/20201013190212.GA85788@ubuntu204
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>