vc4: Add missing load_ubo set_align in yuv_blit fs.

Fixes: e78a7a18252 ("nir: Assert memory loads are aligned")
Reviewed-by: Eric Anholt <eric@anholt.net>
Tested-by: Piotr Oniszczuk <piotr.oniszczuk@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7160>
diff --git a/src/gallium/drivers/vc4/vc4_blit.c b/src/gallium/drivers/vc4/vc4_blit.c
index 4e4c489..e72e5dc 100644
--- a/src/gallium/drivers/vc4/vc4_blit.c
+++ b/src/gallium/drivers/vc4/vc4_blit.c
@@ -299,6 +299,7 @@
    nir_ssa_dest_init(&load->instr, &load->dest, load->num_components, 32, NULL);
    load->src[0] = nir_src_for_ssa(one);
    load->src[1] = nir_src_for_ssa(nir_iadd(&b, x_offset, y_offset));
+   nir_intrinsic_set_align(load,  4, 0);
    nir_builder_instr_insert(&b, &load->instr);
 
    nir_store_var(&b, color_out,