libdt: prefer first found disk when looking for block devices

Recent rework introduced a regression for state located in the eMMC
user area described by DT fixed partitions. Whereas before, the first
device with type "disk" was taken, dt-utils will now iterate over all
devices to try to find a matching GPT partition. If it doesn't find any,
it will instead take the last device with type "disk", which will be the
second boot partition for eMMC devices leading barebox-state to access
/dev/mmcblkXboot1 instead of /dev/mmcblkX.

Let's fix this regression by restoring the old behavior of preferring the
first disk. This may not be totally future proof, but it worked ok for
years and a better solution can always be added later with a regular
release.

Reported-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Tested-by: Leonard Göhrs <lgo@pengutronix.de> [lxa,stm32mp157c-tac-gen1]
Tested-by: Roland Hieber <rhi@pengutronix.de> [riot,imx6s-riotboard]
Link: https://lore.pengutronix.de/oss-tools/20231106110405.3209233-1-a.fatoum@pengutronix.de
Signed-off-by: Roland Hieber <rhi@pengutronix.de>

0 files changed, 0 insertions, 0 deletions