CONFIG_SA1111 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_SA1111 (not configurable)

modulename: sa1111.ko

configname: CONFIG_SA1111

Linux Kernel Configuration
└─>SA1111
In linux kernel since version 2.6.12  
source code:
arch/arm/common/sa1111.c

is selected by
CONFIG_PCMCIA_SA1111