Initial commits of alsa-base.conf (which makes the Intel HDA audio chipset
the primary audio device, and not the HDMI audio chipset) and rtlsdr.conf,
which makes all RTL-SDR devices radios and not television devices.

Initial commit of blacklist.conf, a list of modules to autoload under no
circumstances for whatever reason (usually power conservation).

Signed-off-by: The Doctor <drwho@virtadpt.net>