CONFIG_ARCH_MSM7X00A is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

MSM7x00A / MSM7x01A

configname: CONFIG_ARCH_MSM7X00A

Qualcomm MSM SoC Type
└─>MSM7x00A / MSM7x01A
In linux kernel since version 2.6.25 (release Date: 2008-04-16)