default or selected kernelversion does not have config value CONFIG_EZNPS_GIC.
Result is shown for kernelversion 6.9.9

NPS400 Global Interrupt Manager (GIM)

modulename: irq-eznps.ko

configname: CONFIG_EZNPS_GIC

Linux Kernel Configuration
└─>Device Drivers
└─>IRQ chip support
└─>NPS400 Global Interrupt Manager (GIM)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Support the EZchip NPS400 global interrupt controller

source code:
drivers/irqchip/irq-eznps.c
selects
CONFIG_IRQ_DOMAIN

depends
CONFIG_ARC or CONFIG_COMPILE_TEST
NOT CONFIG_64BIT

is depended by
CONFIG_ARC_PLAT_EZNPS