dt-bindings: mmc: sdhci-of-dwcmhsc: Allow use of a power-domain

The commit 7e85661 ("dt-bindings: mmc: Add support for rk3576
eMMC") limited use of power-domains to Rockchip RK3576.

Remove the power-domains: false to allow use of power-domains with more
controllers, e.g. with SDHCI on Rockchip RK3528.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250518220707.669515-6-jonas@kwiboo.se
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: Kwiboo

Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml

@@ -120,10 +120,6 @@ allOf:
       required:
         - power-domains
 
-    else:
-      properties:
-        power-domains: false
-
 unevaluatedProperties: false
 
 examples: