arm64: dts: qcom: Fix node name of rpm-msg-ram device nodes

According to the new DT schema for qcom,rpm-msg-ram the node name
should be sram@. memory@ is reserved for definition of physical RAM
(usable by Linux).

This fixes the following dtbs_check error on various device trees:
memory@60000: 'device_type' is a required property
        From schema: dtschema/schemas/memory.yaml
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211018110009.30837-1-stephan@gerhold.net

arch/arm64/boot/dts/qcom/msm8916.dtsi

@@ -453,7 +453,7 @@ tsens_calsel: calsel@ec {
 			};
 		};
 
-		rpm_msg_ram: memory@60000 {
+		rpm_msg_ram: sram@60000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x00060000 0x8000>;
 		};

arch/arm64/boot/dts/qcom/msm8994.dtsi

@@ -715,7 +715,7 @@ gcc: clock-controller@fc400000 {
 			reg = <0xfc400000 0x2000>;
 		};
 
-		rpm_msg_ram: memory@fc428000 {
+		rpm_msg_ram: sram@fc428000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0xfc428000 0x4000>;
 		};

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -638,7 +638,7 @@ pciephy_2: phy@37000 {
 			};
 		};
 
-		rpm_msg_ram: memory@68000 {
+		rpm_msg_ram: sram@68000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x00068000 0x6000>;
 		};

arch/arm64/boot/dts/qcom/msm8998.dtsi

@@ -865,7 +865,7 @@ gcc: clock-controller@100000 {
 			clocks = <&xo>, <&sleep_clk>;
 		};
 
-		rpm_msg_ram: memory@778000 {
+		rpm_msg_ram: sram@778000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x00778000 0x7000>;
 		};

arch/arm64/boot/dts/qcom/qcs404.dtsi

@@ -318,7 +318,7 @@ turingcc: clock-controller@800000 {
 			status = "disabled";
 		};
 
-		rpm_msg_ram: memory@60000 {
+		rpm_msg_ram: sram@60000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x00060000 0x6000>;
 		};

arch/arm64/boot/dts/qcom/sdm630.dtsi

@@ -541,7 +541,7 @@ gcc: clock-controller@100000 {
 					<&sleep_clk>;
 		};
 
-		rpm_msg_ram: memory@778000 {
+		rpm_msg_ram: sram@778000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x00778000 0x7000>;
 		};

arch/arm64/boot/dts/qcom/sm6125.dtsi

@@ -380,7 +380,7 @@ hsusb_phy1: phy@1613000 {
 			status = "disabled";
 		};
 
-		rpm_msg_ram: memory@45f0000 {
+		rpm_msg_ram: sram@45f0000 {
 			compatible = "qcom,rpm-msg-ram";
 			reg = <0x045f0000 0x7000>;
 		};