dt-bindings: watchdog: qcom-wdt: Document Shikra watchdog

Add devicetree binding for watchdog present on Qualcomm's
Shikra SoC.

Signed-off-by: Komal Bajaj <komal.bajaj@oss.qualcomm.com>

Author: Komal-Bajaj

Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml

@@ -40,6 +40,7 @@ properties:
               - qcom,apss-wdt-sdm845
               - qcom,apss-wdt-sdx55
               - qcom,apss-wdt-sdx65
+              - qcom,apss-wdt-shikra
               - qcom,apss-wdt-sm6115
               - qcom,apss-wdt-sm6350
               - qcom,apss-wdt-sm8150