Introudce an include_libosmocore directory and move (updated) linuxlist there
diff --git a/firmware/src_simtrace/card_emu.c b/firmware/src_simtrace/card_emu.c
index e7a9c2d..6b61e46 100644
--- a/firmware/src_simtrace/card_emu.c
+++ b/firmware/src_simtrace/card_emu.c
@@ -32,7 +32,7 @@
 #include "card_emu.h"
 #include "req_ctx.h"
 #include "cardemu_prot.h"
-#include "linuxlist.h"
+#include "osmocom/core/linuxlist.h"
 
 
 #define NUM_SLOTS		2