arm: bcmbca: add arch bcmbca machine entry

Update mach-bcm Kconfig to add ARCH_BCMBCA config and select the
required configs for Broadcom Broadband SoC chipsets

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

Author: William Zhang

arch/arm/mach-bcm/Kconfig

@@ -218,4 +218,16 @@ config ARCH_BRCMSTB
 	  This enables support for Broadcom ARM-based set-top box chipsets,
 	  including the 7445 family of chips.
 
+config ARCH_BCMBCA
+	bool "Broadcom Broadband SoC"
+	depends on ARCH_MULTI_V7
+	select ARM_AMBA
+	select ARM_GIC
+	select HAVE_ARM_ARCH_TIMER
+	help
+	  Say Y if you intend to run the kernel on a Broadcom Broadband ARM-based
+	  BCA chipset.
+
+	  This enables support for Broadcom BCA ARM-based broadband chipsets,
+	  including the DSL, PON and Wireless family of chips.
 endif