merged tiger road / f1-dream and pushman / bouncing balls drivers - as usual Comad cloned the hardware when they made the games.

moved the protection sims for f1dream / bbballs to machine/tigeroad.c

also marked f1dream as not working, it's never worked, the protection simulation is incomplete. (the bootleg has some original bugs too due to their workarounds, so technically there isn't a perfectly working version of this game supported by MAME)