pinctrl: tegra: Fix whitespace issues for improved readability

Fix a few whitespace inconsistencies to make the code easier to read.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200319122737.3063291-5-thierry.reding@gmail.com


Tested-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>