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>

drivers/pinctrl/tegra/pinctrl-tegra.h

@@ -107,7 +107,7 @@ struct tegra_function {
  *			drvup, slwr, slwf, and drvtype parameters.
  * @drv_bank:		Drive fields register bank.
  * @hsm_bit:		High Speed Mode register bit.
- * @schmitt_bit:	Scmitt register bit.
+ * @schmitt_bit:	Schmitt register bit.
  * @lpmd_bit:		Low Power Mode register bit.
  * @drvdn_bit:		Drive Down register bit.
  * @drvdn_width:	Drive Down field width.