CONFIG_MACH_TRIMSLICE is not available for the selected architecture x86.
Result is shown for architecture arm

TrimSlice board

modulename: board-trimslice.ko

and/or

board-trimslice-pinmux.ko

configname: CONFIG_MACH_TRIMSLICE

Linux Kernel Configuration
└─>TrimSlice board
In linux kernel since version 2.6.39 (release Date: 2011-05-18)
Support for CompuLab TrimSlice platform
source code:
arch/arm/mach-tegra/board-trimslice.c