msm: rtb: Add support for device tree

Add support for setting up RTB via matching in the device tree
in addition to the platform_data driven model. Also add
the corresponding device for 8974 in the device tree.

Change-Id: I76615fc75ff4fe428cab16a4aa161b032e548983
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8974.dtsi b/arch/arm/boot/dts/msm8974.dtsi
index 220a660..0d1d818 100644
--- a/arch/arm/boot/dts/msm8974.dtsi
+++ b/arch/arm/boot/dts/msm8974.dtsi
@@ -573,6 +573,12 @@
 		qcom,slope = <1134 1122 1142 1123 1176 1176 1176 1186 1176
 				1176 1176>;
 	};
+
+	qcom,msm-rtb {
+		compatible = "qcom,msm-rtb";
+		qcom,memory-reservation-type = "EBI1";
+		qcom,memory-reservation-size = <0x100000>; /* 1M EBI1 buffer */
+	};
 };
 
 /include/ "msm-pm8x41-rpm-regulator.dtsi"