Add comments and spaces in pos/size values

Author: Snap-A

samples/subsys/fs/littlefs/boards/rpi_pico.overlay

@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) 2025 Andreas Wolf <awolf002@gmail.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 /delete-node/ &code_partition;
 
@@ -9,13 +14,13 @@
 
         code_partition: partition@100 {
             label = "code-partition";
-            reg = <0x100 (DT_SIZE_M(2)-0x100-DT_SIZE_K(64))>;
+            reg = <0x100 (DT_SIZE_M(2) - 0x100 - DT_SIZE_K(64))>;
             read-only;
         };
 
         storage_partition: storage_partition@1f0000 {
             label = "storage-partition";
-            reg = <(DT_SIZE_M(2)-DT_SIZE_K(64)) (DT_SIZE_K(64))>;
+            reg = <(DT_SIZE_M(2) - DT_SIZE_K(64)) (DT_SIZE_K(64))>;
         };
     };
 };

samples/subsys/fs/littlefs/boards/rpi_pico_rp2040_w.overlay

@@ -1 +1,7 @@
+/*
+ * Copyright (c) 2025 Andreas Wolf <awolf002@gmai.com>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
 #include "rpi_pico.overlay"