CONFIG_SH_7343_SOLUTION_ENGINE is not available for thedefaultarchitecture x86.
Result is shown for architecture sh

SolutionEngine7343

configname: CONFIG_SH_7343_SOLUTION_ENGINE

Linux/SuperH Kernel Configuration
└─>System type
└─>Board support
└─>SolutionEngine7343
In linux kernel since version 2.6.19 (release Date: 2006-11-29)  
Select 7343 SolutionEngine if configuring for a Hitachi
SH7343 (SH-Mobile 3AS) evaluation board.

selects
CONFIG_SOLUTION_ENGINE
&
CONFIG_GENERIC_IRQ_CHIP
CONFIG_IRQ_DOMAIN