arm64: dts: allwinner: h700: Set cpusldo to always-on for RG35XX

arm64: dts: allwinner: h700: Set cpusldo to always-on for RG35XX

Set the cpusldo regulator for the AXP717 to "regulator-always-on". Its
current functionality is still unknown as there are no schematics
available, however it was observed that upon reboot if this regulator
was disabled GPIO detection logic in the bootloader was inconsistent.
Keep the regulator powered on for now until it can be defined
correctly.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20241018160617.157083-3-macroalpha82@gmail.com
Signed-off-by: Chen-Yu Tsai <wens@csie.org>