radv: add an assertion when pushing meta descriptor sets

Just to make sure we are using the set 0, because it's the
only one which is saved/restored when doing meta operations.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

src/amd/vulkan/radv_cmd_buffer.c

@@ -2169,6 +2169,7 @@ void radv_meta_push_descriptor_set(
 	struct radv_descriptor_set *push_set = &cmd_buffer->meta_push_descriptors;
 	unsigned bo_offset;
 
+	assert(set == 0);
 	assert(layout->set[set].layout->flags & VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR);
 
 	push_set->size = layout->set[set].layout->size;