arm64: dts: qcom: sc7180: Use QMP property to control load state

Use the Qualcomm Mailbox Protocol (QMP) property to control the load
state resources on SC7180 SoCs and drop deprecated power-domains exposed
by AOSS QMP node.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631800770-371-6-git-send-email-sibis@codeaurora.org

arch/arm64/boot/dts/qcom/sc7180.dtsi

@@ -15,7 +15,6 @@
 #include <dt-bindings/interconnect/qcom,sc7180.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/phy/phy-qcom-qusb2.h>
-#include <dt-bindings/power/qcom-aoss-qmp.h>
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/reset/qcom,sdm845-aoss.h>
 #include <dt-bindings/reset/qcom,sdm845-pdc.h>
@@ -1922,14 +1921,15 @@ remoteproc_mpss: remoteproc@4080000 {
 			clock-names = "iface", "bus", "nav", "snoc_axi",
 				      "mnoc_axi", "xo";
 
-			power-domains = <&aoss_qmp AOSS_QMP_LS_MODEM>,
-					<&rpmhpd SC7180_CX>,
+			power-domains = <&rpmhpd SC7180_CX>,
 					<&rpmhpd SC7180_MX>,
 					<&rpmhpd SC7180_MSS>;
-			power-domain-names = "load_state", "cx", "mx", "mss";
+			power-domain-names = "cx", "mx", "mss";
 
 			memory-region = <&mpss_mem>;
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&modem_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
@@ -3224,7 +3224,6 @@ aoss_qmp: power-controller@c300000 {
 			mboxes = <&apss_shared 0>;
 
 			#clock-cells = <0>;
-			#power-domain-cells = <1>;
 		};
 
 		spmi_bus: spmi@c440000 {