CONFIG_MACH_REALVIEW_PBX is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Support RealView/PBX platform
modulename: realview_pbx.ko
configname: CONFIG_MACH_REALVIEW_PBX
Linux Kernel Configuration
└─>RealView platform type
└─>Support RealView/PBX platform
In linux kernel since version 2.6.31 (release Date: 2009-09-09)
Include support for the ARM(R) RealView PBX platform.