Code cleanup for GemTek Radio card driver. Removed unnecessary / invalid
I/O commands and rewrote code for tuning on-board BU2614FS chip. Adds
several new module params for power users. Includes automatic device
probing.
Signed-off-by: Pekka Seppanen <pexu@kapsi.fi> Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com> Reviewed-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>