ARM: berlin: Drop unneeded select of HAVE_SMP

Support for Marvell Berlin SoCs depends on ARCH_MULTI_V7.
As the latter selects HAVE_SMP, there is no need for MACH_BERLIN_BG2 to
select HAVE_SMP.

Link: https://lore.kernel.org/r/20200505150722.1575-7-geert+renesas@glider.beSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-berlin/Kconfig

@@ -19,7 +19,6 @@ config MACH_BERLIN_BG2
 	select CPU_PJ4B
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
-	select HAVE_SMP
 	select PINCTRL_BERLIN_BG2
 
 config MACH_BERLIN_BG2CD