increase max number of changed LEDs

git-svn-id: svn://svn.code.sf.net/p/pinmame/code/trunk@3608 6f51dfdd-75df-4273-8f3b-818b1e6aa8bf
Applied DMD freq. hack to Pistol Poker as well, tiny corrections

git-svn-id: svn://svn.code.sf.net/p/pinmame/code/trunk@3609 6f51dfdd-75df-4273-8f3b-818b1e6aa8bf