While SDHCI 1 appears to work out of the box, we cannot rely on the
bootloader-enabled regulators nor expect them to remain enabled (e.g.
when finally dropping pd_ignore_unused).  Provide it the necessary l24
and l11 regulators now that PM6125 regulators have been made available
on this board.

As usual regulator voltages are decreased to the maximum voted by the
downstream driver for safety.  No other hardware feeds off of these
regulators anyway (except UFS, which isn't used on the seine board in
favour of a DV6DMB eMMC card connected to SDHCI 1).
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221222203636.250190-4-marijn.suijten@somainline.org