arm64: dts: qcom: sdm845: Drop standalone smem node

Now that the SMEM binding and driver allows the SMEM node to be
described in the reserved-memory region directly, move the compatible
and hwlock properties to the reserved-memory node and drop the
standadlone node.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Link: https://lore.kernel.org/r/20210930182111.57353-5-bjorn.andersson@linaro.org

arch/arm64/boot/dts/qcom/sdm845.dtsi

@@ -99,9 +99,11 @@ aop_cmd_db_mem: memory@85fe0000 {
 			no-map;
 		};
 
-		smem_mem: memory@86000000 {
+		smem@86000000 {
+			compatible = "qcom,smem";
 			reg = <0x0 0x86000000 0 0x200000>;
 			no-map;
+			hwlocks = <&tcsr_mutex 3>;
 		};
 
 		tz_mem: memory@86200000 {
@@ -940,12 +942,6 @@ tcsr_mutex: hwlock {
 		#hwlock-cells = <1>;
 	};
 
-	smem {
-		compatible = "qcom,smem";
-		memory-region = <&smem_mem>;
-		hwlocks = <&tcsr_mutex 3>;
-	};
-
 	smp2p-cdsp {
 		compatible = "qcom,smp2p";
 		qcom,smem = <94>, <432>;