twoplayer: Famicom broken in high score entry

[ejona86]

This is really a continuation of #6, but most of #6 was fixed...

Basically, confirming your name in the high score entry uses Start. I've not confirmed via play testing, but I have confirmed the code looks like it should be broken.

Due to how high score entry is implemented as a direct modification of the tetris code it is harder to just ora player 1's controls for the Start check. It may be easiest to say "forget it all" and modify the pollController function for player 2 to copy the Start bit from player 1.