pinctrl: tegra: Fix "Scmitt" -> "Schmitt" typo

Properly spell "Schmitt" in the kerneldoc for pin group definitions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200319122737.3063291-6-thierry.reding@gmail.com


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