sunxi: configs: enable power LEDs on 32-bit boards

sunxi: configs: enable power LEDs on 32-bit boards

We recently gained a simple way to enable a power LED very early in the
SPL boot, through simple Kconfig variables.

Add those symbols to those boards' defconfigs where the DT indicates a
default-on power LED. The number used is <port bank> * 32 + <pin no>,
an active low setup means CONFIG_SPL_SUNXI_LED_STATUS_ACTIVE_HIGH must be
undefined. Since its default is "high", we can skip the symbol in the
defconfig in this case.

This will light up the power LED very early in the (SPL) boot phase on
those 32-bit boards.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Paul Kocialkowski <paulk@sys-base.io>