r600: fix typo that could lead to a possible crash

For instance, with "piglit/bin/arb_shader_image_load_store-host-mem-barrier --quick -auto -fbo":
==18549==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61200000a059 at pc 0x7f65d8937b80 bp 0x7fff6ed19a00 sp 0x7fff6ed199f8
READ of size 1 at 0x61200000a059 thread T0
    #0 0x7f65d8937b7f in evergreen_set_shader_images ../src/gallium/drivers/r600/evergreen_state.c:4277
    #1 0x7f65d6b471b8 in st_bind_images ../src/mesa/state_tracker/st_atom_image.c:172
    #2 0x7f65d6b76b26 in st_validate_state ../src/mesa/state_tracker/st_util.h:129
    #3 0x7f65d6b76b26 in prepare_draw ../src/mesa/state_tracker/st_draw.c:88
    #4 0x7f65d6b77c8a in st_draw_gallium ../src/mesa/state_tracker/st_draw.c:141
    #5 0x7f65d72698a2 in _mesa_draw_arrays ../src/mesa/main/draw.c:1202

Fixes: a6b3792 ("r600: add core pieces of image support.")
Signed-off-by: Patrick Lerda <[email protected]>
Reviewed-by: Gert Wollny <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22273>
(cherry picked from commit e0ed2b2)

.pick_status.json

@@ -427,7 +427,7 @@
         "description": "r600: fix typo that could lead to a possible crash",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "a6b379284365e8adee780b691596d3a66de1ba93"
     },

src/gallium/drivers/r600/evergreen_state.c

@@ -4274,7 +4274,7 @@ static void evergreen_set_shader_images(struct pipe_context *ctx,
 
 		bool is_buffer = image->target == PIPE_BUFFER;
 		struct r600_texture *rtex = (struct r600_texture *)image;
-		if (!is_buffer & rtex->db_compatible)
+		if (!is_buffer && rtex->db_compatible)
 			istate->compressed_depthtex_mask |= 1 << i;
 		else
 			istate->compressed_depthtex_mask &= ~(1 << i);