vulkan: initialize discardRectangleCount even if the state is dynamic

Only the array of rectangles should be dynamic.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18015>
diff --git a/src/vulkan/runtime/vk_graphics_state.c b/src/vulkan/runtime/vk_graphics_state.c
index 2ca8dfc..164526b 100644
--- a/src/vulkan/runtime/vk_graphics_state.c
+++ b/src/vulkan/runtime/vk_graphics_state.c
@@ -403,11 +403,11 @@
    if (dr_info == NULL)
       return;
 
+   assert(dr_info->discardRectangleCount <= MESA_VK_MAX_DISCARD_RECTANGLES);
    dr->mode = dr_info->discardRectangleMode;
+   dr->rectangle_count = dr_info->discardRectangleCount;
 
    if (!IS_DYNAMIC(DR_RECTANGLES)) {
-      assert(dr_info->discardRectangleCount <= MESA_VK_MAX_DISCARD_RECTANGLES);
-      dr->rectangle_count = dr_info->discardRectangleCount;
       typed_memcpy(dr->rectangles, dr_info->pDiscardRectangles,
                    dr_info->discardRectangleCount);
    }