arm64: dts: qcom: qcs615: Remove disallowed property from AOSS_QMP node

AOSS_QMP is not allowed to be a power domain provider, remove the
associated -cells property.

Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/20250327-topic-more_dt_bindings_fixes-v2-5-b763d958545f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <[email protected]>

Author: quic-kdybcio

arch/arm64/boot/dts/qcom/qcs615.dtsi

@@ -3238,7 +3238,6 @@
 			mboxes = <&apss_shared 0>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		sram@c3f0000 {