Kbuild: Fix cleanup of *.dtbo for sandbox

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@linutronix.de>

diff --git a/arch/sandbox/dts/Makefile b/arch/sandbox/dts/Makefile
index b6a88479b2281b53b988d8b1a33c7ebe06d27d8a..f810b4752f5aafe5e6e618be7fdce170597443cb 100644 (file)
--- 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