10.0.3-r1: Add painfully ugly hack for libasound

Work around >=media-libs/alsa-lib-1.0.28 insta-segfaulting the UI.

Don't see to be any reports by other people on the intertubes,
but maybe that doesn't mean it isn't broken.  Anyhow the whole mess
can be turned off with USE="-alsa -pulseaudio" so .. meh.

Signed-off-by: Gregory M. Tuner <gmt@be-evil.net>