CONFIG_LEDS_SUNFIRE is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

LED support for SunFire servers.

modulename: leds-sunfire.ko

configname: CONFIG_LEDS_SUNFIRE

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED support for SunFire servers.
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
This option enables support for the Left, Middle, and Right
LEDs on the I/O and CPU boards of SunFire UltraSPARC servers.

source code:
drivers/leds/leds-sunfire.c