ARM: dts: keystone: Rename "msmram" node to "sram"

The device node name should reflect generic class of a device so rename
the "msmram" node and its children to "sram".  This will be also in sync
with upcoming DT schema.  No functional change.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>

arch/arm/boot/dts/keystone-k2e.dtsi

@@ -86,14 +86,14 @@ usb1: dwc3@25010000 {
 			};
 		};
 
-		msm_ram: msmram@c000000 {
+		msm_ram: sram@c000000 {
 			compatible = "mmio-sram";
 			reg = <0x0c000000 0x200000>;
 			ranges = <0x0 0x0c000000 0x200000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			sram-bm@1f0000 {
+			bm-sram@1f0000 {
 				reg = <0x001f0000 0x8000>;
 			};
 		};

arch/arm/boot/dts/keystone-k2g.dtsi

@@ -95,14 +95,14 @@ soc0: soc@0 {
 		ranges = <0x0 0x0 0x0 0xc0000000>;
 		dma-ranges = <0x80000000 0x8 0x00000000 0x80000000>;
 
-		msm_ram: msmram@c000000 {
+		msm_ram: sram@c000000 {
 			compatible = "mmio-sram";
 			reg = <0x0c000000 0x100000>;
 			ranges = <0x0 0x0c000000 0x100000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			sram-bm@f7000 {
+			bm-sram@f7000 {
 				reg = <0x000f7000 0x8000>;
 			};
 		};

arch/arm/boot/dts/keystone-k2hk.dtsi

@@ -57,14 +57,14 @@ aliases {
 &soc0 {
 		/include/ "keystone-k2hk-clocks.dtsi"
 
-		msm_ram: msmram@c000000 {
+		msm_ram: sram@c000000 {
 			compatible = "mmio-sram";
 			reg = <0x0c000000 0x600000>;
 			ranges = <0x0 0x0c000000 0x600000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			sram-bm@5f0000 {
+			bm-sram@5f0000 {
 				reg = <0x5f0000 0x8000>;
 			};
 		};

arch/arm/boot/dts/keystone-k2l.dtsi

@@ -255,14 +255,14 @@ gpio_emifa_pins: pinmux_gpio_emifa_pins {
 			};
 		};
 
-		msm_ram: msmram@c000000 {
+		msm_ram: sram@c000000 {
 			compatible = "mmio-sram";
 			reg = <0x0c000000 0x200000>;
 			ranges = <0x0 0x0c000000 0x200000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 
-			sram-bm@1f8000 {
+			bm-sram@1f8000 {
 				reg = <0x001f8000 0x8000>;
 			};
 		};