default or selected kernelversion does not have config value CONFIG_MSM_STAGING.
Result is shown for kernelversion 5.6.18
MSM Frame Buffer Support
configname: CONFIG_MSM_STAGING
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Support for frame buffer devices
└─>MSM Frame Buffer Support
In linux kernel since version 2.6.35 (release Date: 2010-08-01)
Support for MSM Framebuffer.