ARM: dts: msm: Update uartdm compatible strings

Let's follow the ratified DT binding and use uartdm instead of
hsuart. This does break backwards compatibility but this
shouldn't be a problem because the uart driver isn't probing on
these devices without adding clock support (which isn't merged so
far).

Cc: David Brown <davidb@codeaurora.org>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/arm/boot/dts/msm8660-surf.dts

@@ -38,7 +38,7 @@
 	};
 
 	serial@19c40000 {
-		compatible = "qcom,msm-hsuart", "qcom,msm-uart";
+		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
 		reg = <0x19c40000 0x1000>,
 		      <0x19c00000 0x1000>;
 		interrupts = <0 195 0x0>;

arch/arm/boot/dts/msm8960-cdp.dts

@@ -38,7 +38,7 @@
 	};
 
 	serial@16440000 {
-		compatible = "qcom,msm-hsuart", "qcom,msm-uart";
+		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
 		reg = <0x16440000 0x1000>,
 		      <0x16400000 0x1000>;
 		interrupts = <0 154 0x0>;