ARM: dts: nspire: Add full compatible for watchdog node

The watchdog appears to be an ARM SP805, add the full compatible
and the needed clocks properties. Leave this disabled for now
as functionality is not fully tested.

Signed-off-by: Andrew Davis <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Krzysztof Kozlowski <[email protected]>

Author: glneo

arch/arm/boot/dts/nspire/nspire.dtsi

@@ -170,9 +170,12 @@
 			};
 
 			watchdog: watchdog@90060000 {
-				compatible = "arm,primecell";
+				compatible = "arm,sp805", "arm,primecell";
 				reg = <0x90060000 0x1000>;
 				interrupts = <3>;
+				clocks = <&apb_pclk>, <&apb_pclk>;
+				clock-names = "wdog_clk", "apb_pclk";
+				status = "disabled";
 			};
 
 			rtc: rtc@90090000 {