meson: Always add LLVM coroutines module.

It gets used by the gallium auxiliary draw module, which gets used
pretty much always when LLVM is used as JIT.

At the same time most builds don't hit the issue here because the
shared library of LLVM contains all modules.

Fixes: d32690b43c91 ("gallivm: add coroutine pass manager support")
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/951
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
1 file changed