arm: bcmbca: add bcm63158 SoC support under CONFIG_ARCH_BCMBCA

BCM63158 is a Broadcom B53 based DSL Gateway SoC. It is part of the
BCA (Broadband Carrier Access origin) chipset family. Like other
Broadband SoC, this patch adds it under CONFIG_BCM63158 chip
config and CONFIG_ARCH_BCMBCA platform config.

This initial support includes a bare-bone implementation and dts with
CPU subsystem, memory and ARM PL011 uart. This SoC is supported in the
linux-next git repository so the dts and dtsi files are copied from
linux.

The u-boot image can be loaded from flash or network to the entry
point address in the memory and boot from there to the console.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/arch/arm/mach-bcmbca/Makefile b/arch/arm/mach-bcmbca/Makefile
index c8c344b..e5df60e 100644
--- a/arch/arm/mach-bcmbca/Makefile
+++ b/arch/arm/mach-bcmbca/Makefile
@@ -9,6 +9,7 @@
 obj-$(CONFIG_BCM63138) += bcm63138/
 obj-$(CONFIG_BCM63146) += bcm63146/
 obj-$(CONFIG_BCM63148) += bcm63148/
+obj-$(CONFIG_BCM63158) += bcm63158/
 obj-$(CONFIG_BCM63178) += bcm63178/
 obj-$(CONFIG_BCM6756) += bcm6756/
 obj-$(CONFIG_BCM6813) += bcm6813/