mxc: Add support for the Babbage board (i.MX5)

Babbage is a reference board from Freescale for their i.MX51 SoC.

Add board definition, Kconfig and Makefiles to enable Freescale i.MX51
processor and Babbage board.

Boot tested on a Babbage2.5 board

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index e9da084..056daf8 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -146,6 +146,7 @@
 machine-$(CONFIG_ARCH_MX2)		:= mx2
 machine-$(CONFIG_ARCH_MX25)		:= mx25
 machine-$(CONFIG_ARCH_MX3)		:= mx3
+machine-$(CONFIG_ARCH_MX5)		:= mx5
 machine-$(CONFIG_ARCH_NETX)		:= netx
 machine-$(CONFIG_ARCH_NOMADIK)		:= nomadik
 machine-$(CONFIG_ARCH_NS9XXX)		:= ns9xxx