ARM: berlin: add MACH_BERLIN_BG2Q symbol

Now that we start supporting the Marvell Berlin BG2Q, add a symbol allowing to
differentiate that SoC from the other SoCs of the Berlin family.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

arch/arm/mach-berlin/Kconfig

@@ -20,6 +20,11 @@ config MACH_BERLIN_BG2CD
 	select CACHE_L2X0
 	select HAVE_ARM_TWD if SMP
 
+config MACH_BERLIN_BG2Q
+	bool "Marvell Armada 1500 Pro (BG2-Q)"
+	select CACHE_L2X0
+	select HAVE_ARM_TWD if SMP
+
 endmenu
 
 endif