Push out some AB8500 setup of regulators and phy out to the
per-AB850x variant file ste-href-ab8500.dtsi so it becomes
self-contained for each AB850x chip.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20231214-ux500-no-turnoff-lowbatt-v1-2-9dcff0783d62@linaro.org