arm64: dts: sprd: Add SC27XX eFuse device

This patch adds the eFuse device node for Spreadtrum SC27XX PMICs.
The SC27XX eFuse contains 32 blocks and each block's data width is
16 bits.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm64/boot/dts/sprd/sc2731.dtsi

@@ -57,6 +57,14 @@ pmic_eic: gpio@300 {
 			#interrupt-cells = <2>;
 		};
 
+		efuse@380 {
+			compatible = "sprd,sc27xx-efuse", "sprd,sc2731-efuse";
+			reg = <0x380>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			hwlocks = <&hwlock 12>;
+		};
+
 		vibrator@ec8 {
 			compatible = "sprd,sc27xx-vibrator", "sprd,sc2731-vibrator";
 			reg = <0xec8>;