arm64: dts: fsd: Add initial pinctrl support

Add initial pin configuration nodes for FSD SoC.

Cc: linux-fsd@tesla.com
Signed-off-by: Shashank Prashar <s.prashar@samsung.com>
Signed-off-by: Aswani Reddy <aswani.reddy@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220124141644.71052-16-alim.akhtar@samsung.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>