CONFIG_DEBUG_OMAP2UART1 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)

configname: CONFIG_DEBUG_OMAP2UART1

Kernel low-level debugging port
└─>OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This covers at least h4, 2430sdp, 3430sdp, 3630sdp,
omap3 torpedo and 3530 lv som.