compiler/spirv: The spirv shader is binary, should write in binary mode

Fixes: 53265c8798 ("spirv: Add a mechanism for dumping failing shaders")

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26775>
(cherry picked from commit fd11818828)

.pick_status.json

@@ -654,7 +654,7 @@
         "description": "compiler/spirv: The spirv shader is binary, should write in binary mode",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "53265c8798ee83e812f2e27356c8d9affc5356ca",
         "notes": null

src/compiler/spirv/spirv_to_nir.c

@@ -156,7 +156,7 @@ vtn_dump_shader(struct vtn_builder *b, const char *path, const char *prefix)
    if (len < 0 || len >= sizeof(filename))
       return;
 
-   FILE *f = fopen(filename, "w");
+   FILE *f = fopen(filename, "wb");
    if (f == NULL)
       return;