Fix build with glib < 2.68

Author: arkq

src/platform/Linux/bluez/BluezEndpoint.cpp

@@ -75,6 +75,10 @@
 #include "BluezConnection.h"
 #include "Types.h"
 
+#if !GLIB_CHECK_VERSION(2, 68, 0)
+#define g_memdup2 g_memdup
+#endif
+
 namespace chip {
 namespace DeviceLayer {
 namespace Internal {