[PATCH v2 5/6] Kbuild: Fix cleanup of *.dtbo for sandbox

[Tobias Deiminger]

sandbox can generate DT overlays, but they were not cleaned.

Extend the explicit clean-files list accordingly.

Fixes: 95300f203f32 ("pytest: add sandbox test for "extension" command")
Signed-off-by: Tobias Deiminger <tdmg at linutronix.de>
---
 arch/sandbox/dts/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sandbox/dts/Makefile b/arch/sandbox/dts/Makefile
index b6a88479b2..f810b4752f 100644
--- a/arch/sandbox/dts/Makefile
+++ b/arch/sandbox/dts/Makefile
@@ -18,4 +18,4 @@ PHONY += dtbs
 dtbs: $(addprefix $(obj)/, $(dtb-y))
 	@:
 
-clean-files := *.dtb
+clean-files := *.dtb *.dtbo
-- 
2.30.2