arm64: dts: qcom: sm8350: Drop standalone smem node

SM8350 is one of the last SoCs whose DTSI escaped the smem node
conversion. Use the newer memory-node binding instead of a memory *and*
smem node.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221219162618.873117-1-konrad.dybcio@linaro.org

arch/arm64/boot/dts/qcom/sm8350.dtsi

@@ -415,8 +415,10 @@
 			no-map;
 		};
 
-		smem_mem: memory@80900000 {
+		smem@80900000 {
+			compatible = "qcom,smem";
 			reg = <0x0 0x80900000 0x0 0x200000>;
+			hwlocks = <&tcsr_mutex 3>;
 			no-map;
 		};
 
@@ -525,12 +527,6 @@
 		};
 	};
 
-	smem: qcom,smem {
-		compatible = "qcom,smem";
-		memory-region = <&smem_mem>;
-		hwlocks = <&tcsr_mutex 3>;
-	};
-
 	smp2p-adsp {
 		compatible = "qcom,smp2p";
 		qcom,smem = <443>, <429>;