HEADS UP: DTS update will renumber rockpro64 sd and emmc storage

[matthew green <mrg%eterna.com.au@localhost>]

hi folks.


an unfortunate problem with the DTS 5.15 update is that the
sdio device has been enabled by default, which means that 
the default ordering of sdmmc(4) devices changes, which leads
to the ld(4) numbers changing too.

the old sdmmc0 and sdmmc1 become sdmmc1 and sdmmc2, and so
ld0 and ld1 become ld1 and ld2.

there's no real simple fix for this, as we want to enable
the sdio support, and forcing the old attachments would
require some ugly patches.

fortunately, installations with only one sd or emmc likely
already use the "ROOT.a" method in /etc/fstab, which means
that the change won't affect the root file system.

a different pre-fix would be to reconfigure these as gpt and
dk and mount via name or uuid, then it won't matter what the
device unit is.


.mrg.