CONFIG_ARCH_MSM is not available for the default architecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_ARCH_MSM.
Result is shown for kernelversion 5.9.9

is selected by

Qualcomm MSM

configname: CONFIG_ARCH_MSM

ARM system type
└─> Qualcomm MSM

Support for Qualcomm MSM/QSD based systems. This runs on the
apps processor of the MSM/QSD and depends on a shared memory
interface to the modem processor which runs the baseband
stack and controls some vital subsystems
(clock and power control, etc).