CONFIG_ARCH_BERLIN is not available for the selected architecture x86.
Result is shown for architecture arm

Marvell Berlin SoCs

modulename: reset-berlin.ko

configname: CONFIG_ARCH_BERLIN

Linux Kernel Configuration
└─>Marvell Berlin SoCs
In linux kernel since version 3.10 (release Date: 2013-06-30)
source code:
drivers/reset/reset-berlin.c

is selected by
CONFIG_PHY_BERLIN_USB