CONFIG_MACH_BERLIN_BG2Q is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Marvell Armada 1500 Pro (BG2-Q)

modulename: bg2q.ko

configname: CONFIG_MACH_BERLIN_BG2Q

Linux Kernel Configuration
└─>Marvell Berlin SoCs
└─>Marvell Armada 1500 Pro (BG2-Q)
In linux kernel since version 3.16 (release Date: 2014-08-03)  
source code:
drivers/clk/berlin/bg2q.c