CONFIG_ARM_L1_CACHE_SHIFT_6 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_ARM_L1_CACHE_SHIFT_6 (not configurable)

configname: CONFIG_ARM_L1_CACHE_SHIFT_6

Linux Kernel Configuration
└─>ARM_L1_CACHE_SHIFT_6
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Setting ARM L1 cache line size to 64 Bytes.

is depended by
CONFIG_ARCH_TEGRA_114_SOC