CONFIG_OMAP_LL_DEBUG_UART3 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_OMAP_LL_DEBUG_UART3.
Result is shown for kernelversion 5.4.194
UART3
configname: CONFIG_OMAP_LL_DEBUG_UART3
Low-level debug console UART
└─>UART3