Add override for lib.mk clean to fix the following warnings from clean
target run.

Makefile:44: warning: overriding recipe for target 'clean'
../lib.mk:55: warning: ignoring old recipe for target 'clean'

Signed-off-by: Shuah Khan <redacted>
---
 tools/testing/selftests/x86/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index 38e0a9c..4d27550 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile

@@ -40,8 +40,9 @@ all_32: $(BINARIES_32)
 
 all_64: $(BINARIES_64)
 
-clean:
+override define CLEAN
 	$(RM) $(BINARIES_32) $(BINARIES_64)
+endef
 
 $(BINARIES_32): $(OUTPUT)/%_32: %.c
 	$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm

-- 
2.9.3