kernelconfig_penguin
CONFIG_DEBUG_ZTE_ZX is not available for the default architecture x86.
Result is shown for architecture arm

Use ZTE ZX UART

configname: CONFIG_DEBUG_ZTE_ZX

Kernel low-level debugging port
└─> Use ZTE ZX UART

Say Y here if you are enabling ZTE ZX296702 SOC and need
debug uart support.

This option is preferred over the platform specific
options; the platform specific options are deprecated
and will be soon removed.