anv/pipeline: Store the (set, binding, index) tripple in the bind map

This way the the bind map (which we're caching) is mostly independent of
the pipeline layout.  The only coupling remaining is that we pull the array
size of a binding out of the layout.  However, that size is also specified
in the shader and should always match so it's not really coupled.  This
rendering issues in Dota 2.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>

src/intel/vulkan/anv_pipeline.c

@@ -646,7 +646,8 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
          for (unsigned i = 0; i < array_len; i++) {
             rt_bindings[num_rts] = (struct anv_pipeline_binding) {
                .set = ANV_DESCRIPTOR_SET_COLOR_ATTACHMENTS,
-               .offset = rt + i,
+               .binding = 0,
+               .index = rt + i,
             };
          }
 
@@ -662,7 +663,8 @@ anv_pipeline_compile_fs(struct anv_pipeline *pipeline,
          /* If we have no render targets, we need a null render target */
          rt_bindings[0] = (struct anv_pipeline_binding) {
             .set = ANV_DESCRIPTOR_SET_COLOR_ATTACHMENTS,
-            .offset = UINT16_MAX,
+            .binding = 0,
+            .index = UINT16_MAX,
          };
          num_rts = 1;
       }