ARM: bcm: clean-up unneeded kconfig selects

Multi-platform support implies all these options are already selected and
individual platforms don't need to select them.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Christian Daudt <bcm@fixthebug.org>
Cc: Matt Porter <mporter@linaro.org>
Cc: bcm-kernel-feedback-list@broadcom.com

arch/arm/mach-bcm/Kconfig

@@ -11,7 +11,6 @@ menu "Broadcom SoC Selection"
 
 config ARCH_BCM_MOBILE
 	bool "Broadcom Mobile SoC" if ARCH_MULTI_V7
-	depends on MMU
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_754322
 	select ARM_ERRATA_764369 if SMP
@@ -33,10 +32,7 @@ config ARCH_BCM2835
 	select ARM_AMBA
 	select ARM_ERRATA_411920
 	select ARM_TIMER_SP804
-	select CLKDEV_LOOKUP
 	select CLKSRC_OF
-	select CPU_V6
-	select GENERIC_CLOCKEVENTS
 	select PINCTRL
 	select PINCTRL_BCM2835
 	help
@@ -45,14 +41,10 @@ config ARCH_BCM2835
 
 config ARCH_BCM_5301X
 	bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
-	depends on MMU
 	select ARM_GIC
 	select CACHE_L2X0
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
-	select HAVE_SMP
-	select COMMON_CLK
-	select GENERIC_CLOCKEVENTS
 	select ARM_GLOBAL_TIMER
 	select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 	select MIGHT_HAVE_PCI