config option needs to be in config namespace

linux/fsfwconfig/OBSWConfig.h.in

@@ -14,8 +14,6 @@
 #include "commonConfig.h"
 #include "OBSWVersion.h"
 
-#define OBSW_FILESYSTEM_HANDLER_QUEUE_SIZE  50
-
 /* These defines should be disabled for mission code but are useful for
 debugging. */
 #define OBSW_VERBOSE_LEVEL              1
@@ -66,6 +64,7 @@ namespace config {
 #endif
 
 /* Add mission configuration flags here */
+static constexpr uint32_t OBSW_FILESYSTEM_HANDLER_QUEUE_SIZE = 50;
 
 #ifdef __cplusplus
 }