Introduce PSoC-6 pinctrl infraestructure and definitions. This add
files to handle devicetree entries and following modifications:
- add pinctrl bindings
- update gpio bindings with pin-cells
- add pinctrl node and move gpio nodes inside
- declare pinctrl for current uart entries
Signed-off-by: Gerson Fernando Budke <gerson.budke@atl-electronics.com>
Gerson Fernando Budke