qga: wixl: get path to sysroot from pkg-config as intended

The .wxs file uses $(var.Mingw_bin) while configure/meson have always
used Mingw_dlls.  Fix them to match what was probably intended.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2 files changed