CONFIG_SOC_IMX7D is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
i.MX7 Dual support
modulename: clk-imx7d.ko
configname: CONFIG_SOC_IMX7D
Linux Kernel Configuration
└─>Freescale i.MX family
└─>i.MX7 Dual support
In linux kernel since version 3.10 (release Date: 2013-06-30)
This enables support for Freescale i.MX7 Dual processor.