bcm63158: add initial support

This add the initial support of the broadcom bcm63158 SoC family,
only the cpu, dram and uart are supported.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f0edb10..4316de0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -528,6 +528,12 @@
 	imply CMD_DM
 	imply FAT_WRITE
 
+config ARCH_BCM63158
+	bool "Broadcom BCM63158 family"
+	select DM
+	select OF_CONTROL
+	imply CMD_DM
+
 config ARCH_BCM6858
 	bool "Broadcom BCM6858 family"
 	select DM