dt-bindings: power: supply: pm8941-charger: add pm8226

The charger in PM8226 (used in MSM8226) is similar to the charger in
PM8941.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml

@@ -11,7 +11,9 @@ maintainers:
 
 properties:
   compatible:
-    const: qcom,pm8941-charger
+    enum:
+      - qcom,pm8226-charger
+      - qcom,pm8941-charger
 
   reg:
     maxItems: 1