Merge branch 'dma-heaps' into 'master'

Draft: render/allocator: add DMA-BUF heap allocator

See merge request wlroots/wlroots!4414

meson.build

@@ -73,6 +73,7 @@ features = {
 	'gles2-renderer': false,
 	'vulkan-renderer': false,
 	'gbm-allocator': false,
+	'dma-heap-allocator': false,
 	'session': false,
 	'color-management': false,
 }