ARM: dts: imxrt1170-pinfunc: Add pinctrl binding header

Add binding header for i.MXRT1170 pinctrl device tree.

Cc: Giulio Benetti <[email protected]>
Signed-off-by: Jesse Taube <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

Author: Mr-Bossman