vulkan: add vk_descriptor_type_is_dynamic helper

There's a few variants of this in the tree already, let's add a reusable
one that we can switch to.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32627>

src/vulkan/util/vk_util.h

@@ -384,6 +384,19 @@ vk_index_to_restart(VkIndexType type)
    }
 }
 
+static inline bool
+vk_descriptor_type_is_dynamic(VkDescriptorType type)
+{
+   switch (type) {
+   case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
+   case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
+      return true;
+
+   default:
+      return false;
+   }
+}
+
 #ifdef __cplusplus
 }
 #endif