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

CONFIG_PXA_HAVE_ISA_IRQS (not configurable)

configname: CONFIG_PXA_HAVE_ISA_IRQS

Linux Kernel Configuration
└─>PXA_HAVE_ISA_IRQS
In linux kernel since version 2.6.28 (release Date: 2008-12-24)  
depends
CONFIG_ARCH_PXA

is depended by
CONFIG_MACH_ARCOM_ZEUS