fluidsynth: upgrade to 1.1.1

* and drop special do_configure, now with libtool working with sysroot
  argument, we need this otherwise libfluidsynth.la references
  /usr/lib/libasound.la directly instead of =/usr/lib/libasound.la and
  e.g. vlc build fails

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>