tests: Introduce DT overlay tests
This adds a bunch of unit tests for the "fdt apply" command.
They've all been run successfully in the sandbox. However, as you still
require an out-of-tree dtc with overlay support, this is disabled by
default.
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/Makefile b/Makefile
index a2f5569..aa2ec71 100644
--- a/Makefile
+++ b/Makefile
@@ -675,6 +675,7 @@
libs-y += test/
libs-y += test/dm/
libs-$(CONFIG_UT_ENV) += test/env/
+libs-$(CONFIG_UT_OVERLAY) += test/overlay/
libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)