ARM: dts: DRA7: Thermal: Add slope and offset values

Currently the slope and offset values for calculating the
hot spot temperature of a particular thermal zone is part
of driver data. Pass them here instead and obtain the values
while of node parsing.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -1996,6 +1996,23 @@ thermal_zones: thermal-zones {
 
 &cpu_thermal {
 	polling-delay = <500>; /* milliseconds */
+	coefficients = <0 2000>;
+};
+
+&gpu_thermal {
+	coefficients = <0 2000>;
+};
+
+&core_thermal {
+	coefficients = <0 2000>;
+};
+
+&dspeve_thermal {
+	coefficients = <0 2000>;
+};
+
+&iva_thermal {
+	coefficients = <0 2000>;
 };
 
 /include/ "dra7xx-clocks.dtsi"