zink: fix shader buffer size caps to use 65536

using max(Uniform|Storage)BufferRange yields some insane values that aren't
consistent with reality

affects PIPE_CAP_MAX_SHADER_BUFFER_SIZE and PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6981>
1 file changed