panfrost: Fix multiplanar YUV texture descriptor emission on v9+

panfrost: Fix multiplanar YUV texture descriptor emission on v9+

Multiplanar YUV textures require two surface descriptors, and the
base address calculation should be moved inside the for loop,
otherwise we always take the base address of the first plane.

Fixes: 144f9324a374 ("panfrost: prepare v9+ to support YUV sampling")
Cc: stable
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26425>
(cherry picked from commit 93e9bfcfd512858ccace258f1436bd0485a53b84)