CONFIG_ARCH_QCOM is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
Qualcomm Support
configname: CONFIG_ARCH_QCOM
Linux Kernel Configuration
└─>Qualcomm Support
In linux kernel since version 3.10 (release Date: 2013-06-30)
Support for Qualcomm's devicetree based systems.
This includes support for a few devices with ARM64 SoC, that have
ARM32 signed firmware that does not allow booting ARM64 kernels.
This includes support for a few devices with ARM64 SoC, that have
ARM32 signed firmware that does not allow booting ARM64 kernels.