Remove '0x' prefix from pstore node in dts, just like it was done
for the device tree used by Linux on MT7622.
This change is done in preparation to update U-Boot to 2022.04.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Add support for pstore/ramoops now that DRAM content is preserved
over reboot on MT7622. On each boot, check pstore and boot to recovery
image in case there are records stored in it.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>