default or selected kernelversion does not have config value CONFIG_WESTBRIDGE_ASTORIA.
Result is shown for kernelversion 5.6.18
West Bridge Astoria support
configname: CONFIG_WESTBRIDGE_ASTORIA
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>West Bridge support
└─>West Bridge Astoria support
In linux kernel since version 2.6.37 (release Date: 2011-01-04)
This option enables support for West Bridge Astoria