pan/bi: Fix swizzle handling in bi_copy_src()

The number of src swizzle to initialize depends on the number of source
properties (size and number of components) not the destination ones.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7472>
1 file changed