CONFIG_MACH_CM_T3730 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_MACH_CM_T3730 (not configurable)

configname: CONFIG_MACH_CM_T3730

Linux Kernel Configuration
└─>TI OMAP2/3/4 Specific Features
└─>MACH_CM_T3730
In linux kernel since version 3.1 (release Date: 2011-10-24)  
depends
CONFIG_ARCH_OMAP2PLUS |
| CONFIG_ARCH_MULTI_V6 or CONFIG_ARCH_MULTI_V7

is depended by
CONFIG_MACH_CM_T35