CONFIG_ARCH_MSM8X60 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Enable support for MSM8X60

configname: CONFIG_ARCH_MSM8X60

Linux Kernel Configuration
└─>Qualcomm MSM SoC Selection
└─>Enable support for MSM8X60
In linux kernel since version 2.6.37 (release Date: 2011-01-04)