CONFIG_DEBUG_OMAP1UART2 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Kernel low-level debugging via OMAP1 UART2

configname: CONFIG_DEBUG_OMAP1UART2

Kernel low-level debugging port
└─>Kernel low-level debugging via OMAP1 UART2
In linux kernel since version 4 (release Date: 2015-04-12)  
Say Y here if you want kernel low-level debugging support
on OMAP1 based platforms (except OMAP730) on the UART2.