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

CONFIG_ARCOM_PCMCIA (not configurable)

modulename: viper-pcmcia.ko

and/or

pxa2xx_viper.ko

configname: CONFIG_ARCOM_PCMCIA

Linux Kernel Configuration
└─>PXA2xx/PXA3xx-based
└─>Intel PXA2xx/PXA3xx Implementations
└─>ARCOM_PCMCIA
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Generic option for Arcom Viper/Zeus PCMCIA

source code:
arch/arm/mach-pxa/viper-pcmcia.c

is selected by
CONFIG_PCMCIA_PXA2XX