In my attempts to make the LEGIC code better, its not working now. Timings if off.

CHG: switching to US clock.
CHG: better trace annotation for legic
CHG: Legic prng can now give a x bits in once.

client/cmdhflegic.h

@@ -20,6 +20,7 @@
 #include "cmdmain.h"
 #include "util.h"
 #include "crc.h"
+#include "legic_prng.h"
 
 int CmdHFLegic(const char *Cmd);