ARM: dtsi: renaming the driver name and variable name in dt

Renaming the driver compatibity name and varaiable in the dt
file.

CRs-fixed: 568380
Change-Id: I29b0a2b0f541cedb409efed2e7645fdc7f0563a4
Signed-off-by: Anil kumar mamidala <amami@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm8926-v2-ext-buck.dtsi b/arch/arm/boot/dts/msm8926-v2-ext-buck.dtsi
index 61a2fa7..0785def 100644
--- a/arch/arm/boot/dts/msm8926-v2-ext-buck.dtsi
+++ b/arch/arm/boot/dts/msm8926-v2-ext-buck.dtsi
@@ -78,10 +78,10 @@
 		};
 	};
 
-	qcom,ext-buck-support {
-		compatible = "qcom,ext-buck-support";
+	qcom,ext-buck-control {
+		compatible = "qcom,ext-buck-control";
 		qcom,gpio-num = <50>;
-		qcom,settling-time = <2580>;
+		qcom,settling-time-us = <2580>;
 	};
 
 };