arm64: dts: allwinner: teres-i: Add GPIO port regulators

Allwinner A64 SoC has separate supplies for PC, PD, PE, PG and PL.

Signed-off-by: Harald Geyer <harald@ccbib.org>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220430191009.73946-1-harald@ccbib.org