ARM: dts: msm: Enable rmtfs device for SDM670

It is needed to enable remote file system on modem processor, which
needs access to store data onto eMMC/UFS device.

The shared memory size used by modem and apps for this purpose is 2MB.

Change-Id: I5b7189ac260e2dcbb40a5d6b61b12b5255b500af
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
index 97a79bd..a0c2c6e 100644
--- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi
@@ -1619,6 +1619,13 @@
 		status = "ok";
 	};
 
+	qcom,rmtfs_sharedmem@0 {
+		compatible = "qcom,sharedmem-uio";
+		reg = <0x0 0x200000>;
+		reg-names = "rmtfs";
+		qcom,client-id = <0x00000001>;
+	};
+
 	qcom,rmnet-ipa {
 		compatible = "qcom,rmnet-ipa3";
 		qcom,rmnet-ipa-ssr;