move things around

firmware/lib/custom/custom.c

@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2021, Legrand North America, LLC.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <app/lib/custom.h>
+
+int custom_get_value(int val)
+{
+	return (val != 0) ? val : CONFIG_CUSTOM_GET_VALUE_DEFAULT;
+}