meson: Fix linkage of libgallium_nine with libgalliumvl
Do not link libgallium_nine with libgalliumvl_stub if it's already linked with libgalliumvl. Linking with stub leads to "duplicate symbol" errors.
Closes: #2040 (closed)
Signed-off-by: Yevhenii Kolesnikov yevhenii.kolesnikov@globallogic.com
Edited by Yevhenii Kolesnikov