arm/dt: MSMSAMARIUM: Add device tree for RUMI

Add the DTSI file for the MSMSAMARIUM RUMI platform. Also update
makefile for compiling dts file.

Change-Id: Ia13d170efb5916ffb1febfd2ba95e9e240204513
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
diff --git a/arch/arm/mach-msm/Makefile.boot b/arch/arm/mach-msm/Makefile.boot
index b40c70a..b8c2890 100644
--- a/arch/arm/mach-msm/Makefile.boot
+++ b/arch/arm/mach-msm/Makefile.boot
@@ -109,3 +109,4 @@
 # MSMSAMARIUM
    zreladdr-$(CONFIG_ARCH_MSMSAMARIUM)	:= 0x00008000
 	dtb-$(CONFIG_ARCH_MSMSAMARIUM)	+= msmsamarium-sim.dtb
+	dtb-$(CONFIG_ARCH_MSMSAMARIUM)	+= msmsamarium-rumi.dtb