ARM: dts: sun8i: V3/V3s/S3/S3L: add pinctrl for I2C1 at PE bank

I2C1 controller is available at PE bank, usually used for
connecting an I2C-controlled camera sensor.

Add pinctrl node for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200923010014.148482-2-icenowy@aosc.io