asahi: disable compute-based blitter for now

works great on g13g but hoses g13x. needs investigation.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26963>

src/gallium/drivers/asahi/agx_blit.c

@@ -102,6 +102,9 @@ asahi_blit_compute_shader(struct pipe_context *ctx, enum asahi_blit_clamp clamp,
 static bool
 asahi_compute_blit_supported(const struct pipe_blit_info *info)
 {
+   /* XXX: Hot fix. compute blits broken on G13X? needs investigation */
+   return false;
+#if 0
    return (info->src.box.depth == info->dst.box.depth) && !info->alpha_blend &&
           !info->num_window_rectangles && !info->sample0_only &&
           !info->scissor_enable && !info->window_rectangle_include &&
@@ -118,6 +121,7 @@ asahi_compute_blit_supported(const struct pipe_blit_info *info)
           info->dst.format != PIPE_FORMAT_R5G6B5_UNORM &&
           info->dst.format != PIPE_FORMAT_R5G5B5A1_UNORM &&
           info->dst.format != PIPE_FORMAT_R5G5B5X1_UNORM;
+#endif
 }
 
 static void