dear
@lukipedio,
there had have some reported issues with the latest Scarthgap yocto-sdk on Layerscape, I suggest you to use the LLDP 6.1.55 instead of.
In any case, I will do the test on my side. In the meanwhile please do the next:
>> Set the next variable in local.conf
KCONFIG_CONFIG_ENABLE_MENUCONFIG = "1"
#try with 1 instead true
>> develop the next commands
bitbake -c clean virtual/kernel
bitbake -c menuconfig virtual/kernel
please let me know the results
BR
LFGP