ARM: dts: msm: optimize default,cma size for qcs403

Reduced default,cma size to 4MB from 16MB for qcs403.

Change-Id: I54c14982cadaffd060bec12b47cf090307c7bfd5
Signed-off-by: Vishwanath Raju K <vishk@codeaurora.org>

arch/arm64/boot/dts/qcom/qcs403.dtsi

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -45,3 +45,9 @@
 			< 1401600 MHZ_TO_MBPS( 710, 8) >;
 	};
 };
+
+&reserved_mem {
+	linux,cma {
+		size = <0 0x400000>;
+	};
+};

arch/arm64/boot/dts/qcom/qcs405.dtsi

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -34,7 +34,7 @@
 		bootargs = "rcupdate.rcu_expedited=1 rcu_nocbs=0-7";
 	};
 
-	reserved-memory {
+	reserved_mem: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;