CONFIG_ARCH_EBSA285_HOST is not available for the default architecture x86.
Result is shown for architecture arm

EBSA285 (host mode)

configname: CONFIG_ARCH_EBSA285_HOST

Linux Kernel Configuration
└─> Footbridge Implementations
└─> EBSA285 (host mode)

Say Y here if you intend to run this kernel on the EBSA285 card
in host ("central function") mode.

Saying N will reduce the size of the Footbridge kernel.