ARM: dts: qcom: use generic sram as name for imem and ocmem nodes

According to Devicetree specification, the device nodes should be
generic, reflecting the function of the device. The typical name for
memory regions is "sram".

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Luca Weiss <[e-mail]>
Signed-off-by: Bjorn Andersson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts

···
 			};
 		};
 
-		imem@2a03f000 {
+		sram@2a03f000 {
 			compatible = "syscon", "simple-mfd";
 			reg = <0x2a03f000 0x1000>;
 

arch/arm/boot/dts/qcom-msm8974.dtsi

···
 			};
 		};
 
-		ocmem@fdd00000 {
+		sram@fdd00000 {
 			compatible = "qcom,msm8974-ocmem";
 			reg = <0xfdd00000 0x2000>,
 			      <0xfec00000 0x180000>;
···
 			};
 		};
 
-		imem: imem@fe805000 {
+		imem: sram@fe805000 {
 			compatible = "syscon", "simple-mfd";
 			reg = <0xfe805000 0x1000>;
 

arch/arm/boot/dts/qcom-sdx55.dtsi

···
 			#interrupt-cells = <2>;
 		};
 
-		imem@1468f000 {
+		sram@1468f000 {
 			compatible = "simple-mfd";
 			reg = <0x1468f000 0x1000>;