pcHDTV HD-5500 support

[Jason Harmening]

Hi everyone,

I've added support for the pcHDTV HD-5500 to the cx88 driver.  The latest 
snapshot is available at ftp://corona.homeunix.net/cx88_20071007.tar.gz

There have been a few bugfixes since the 20070930 snapshot, but mostly support 
for the LG H064xf PLL and LG DT3303 demodulator has been added to libtuner, 
which could be useful for other cards.

--Jason