CONFIG_ARCH_BERLIN is not available for thedefaultarchitecture x86.
Result is shown for architecture arm64

Marvell Berlin SoC Family

configname: CONFIG_ARCH_BERLIN

Linux Kernel Configuration
└─>Platform selection
└─>Marvell Berlin SoC Family
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This enables support for Marvell Berlin SoC Family