compiler: Use a meson dependency for libcompiler

compiler: Use a meson dependency for libcompiler

That will make sure the include directories are passed on and also
make sure the generated headers are properly built before whoever code
depends on it. NIR dependency propagates that dependency too.

Since the right include directory is always propagated, we can remove
the extra "compiler/" prefix from the `#include`s in glsl_types.h.

Note: NIR has a special "header only" dependency, so include the
generated headers for compiler there too.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9843
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25314>