ARM: OMAP3: Add minimal Beagle board support

Add minimal Beagle board support. Based on earlier patches
by Syed Mohammed Khasim with some fixes from linux-omap tree.

Signed-off-by: Syed Mohammed Khasim <khasim@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mm/Kconfig

@@ -428,7 +428,7 @@ config CPU_32v6K
 # ARMv7
 config CPU_V7
 	bool "Support ARM V7 processor"
-	depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB
+	depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP3
 	select CPU_32v6K
 	select CPU_32v7
 	select CPU_ABRT_EV7