ARM: dts: imx50: imx50-esdhc use imx53-esdhc

According to the reference manuals, both imx50/imx53 SOC seem to share
the same eSDHC controller, especially the section on "Multi-block Read"
mentioned in commit 361b8482 ("mmc: sdhci-esdhc-imx: fix multiblock
reads on i.MX53") is identical for both SOC.
Hence, let imx50 use imx53-esdhc.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx50.dtsi

@@ -109,7 +109,7 @@ spba@50000000 {
 				ranges;
 
 				esdhc1: esdhc@50004000 {
-					compatible = "fsl,imx50-esdhc";
+					compatible = "fsl,imx50-esdhc", "fsl,imx53-esdhc";
 					reg = <0x50004000 0x4000>;
 					interrupts = <1>;
 					clocks = <&clks IMX5_CLK_ESDHC1_IPG_GATE>,
@@ -121,7 +121,7 @@ esdhc1: esdhc@50004000 {
 				};
 
 				esdhc2: esdhc@50008000 {
-					compatible = "fsl,imx50-esdhc";
+					compatible = "fsl,imx50-esdhc", "fsl,imx53-esdhc";
 					reg = <0x50008000 0x4000>;
 					interrupts = <2>;
 					clocks = <&clks IMX5_CLK_ESDHC2_IPG_GATE>,
@@ -170,7 +170,7 @@ ssi2: ssi@50014000 {
 				};
 
 				esdhc3: esdhc@50020000 {
-					compatible = "fsl,imx50-esdhc";
+					compatible = "fsl,imx50-esdhc", "fsl,imx53-esdhc";
 					reg = <0x50020000 0x4000>;
 					interrupts = <3>;
 					clocks = <&clks IMX5_CLK_ESDHC3_IPG_GATE>,
@@ -182,7 +182,7 @@ esdhc3: esdhc@50020000 {
 				};
 
 				esdhc4: esdhc@50024000 {
-					compatible = "fsl,imx50-esdhc";
+					compatible = "fsl,imx50-esdhc", "fsl,imx53-esdhc";
 					reg = <0x50024000 0x4000>;
 					interrupts = <4>;
 					clocks = <&clks IMX5_CLK_ESDHC4_IPG_GATE>,