dt-bindings: mmc: Extend pwrseq-sd8787 binding for wilc1000

Extend the DT bindings to support wilc1000 devices.
Signed-off-by: NClaudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210820092803.78523-2-claudiu.beznea@microchip.comSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml

@@ -11,7 +11,9 @@ maintainers:
 
 properties:
   compatible:
-    const: mmc-pwrseq-sd8787
+    enum:
+      - mmc-pwrseq-sd8787
+      - mmc-pwrseq-wilc1000
 
   powerdown-gpios:
     minItems: 1