radv: Fix CmdCopyImage between uncompressed and compressed images

radv: Fix CmdCopyImage between uncompressed and compressed images

From the spec:

    "When copying between compressed and uncompressed formats the
     extent members represent the texel dimensions of the source
     image and not the destination."

However, as per 7b890a36, we must still use the destination image type
when clamping the extent so that we copy the correct number of layers
for 2D to 3D copies.

Fixes: 7b890a36 "radv: Fix vkCmdCopyImage for 2d slices into 3d Images"
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>