CONFIG_ARCH_OMAP3 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

TI OMAP3

modulename: sram34xx.ko

and/or

clock34xx.ko

configname: CONFIG_ARCH_OMAP3

OMAP System Type
└─>TI OMAP3
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
source code:
/arch/arm/mach-omap2/
is selected by
CONFIG_ARCH_OMAP3430