bcm4506/bcm4501 fixed broken toneburst handling (broken since 20110501 drivers)

WARNING
these drivers are for original dreambox receivers only, do not attempt to flash to a cloned unit as it may cause damage.


Code:
http://sources.dreamboxupdate.com/opendreambox/1.6/dm500hd/feed-rel_31/dm500hd/dreambox-dvb-modules_2.6.18-7.4-dm500hd-20110506-r0_dm500hd.ipk