alsa-utils: alsamixer need libform, libmenu & libpanel (from ncurses)

Without this patch alsamixer complains about missing libs and
ldd says:
        libform.so.5 => not found
        libmenu.so.5 => not found
        libpanel.so.5 => not found
        libncurses.so.5 => /usr/lib/libncurses.so.5 (0x4000e000)
        libasound.so.2 => /usr/lib/libasound.so.2 (0x40056000)
        ... <cut>

Signed-off-by: Julien Boibessot <julien.boibessot@armadeus.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>