disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/samples/hw_breakpoint/Makefile
..
..
@@ -1 +1,2 @@
1
+# SPDX-License-Identifier: GPL-2.0-only
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2
 obj-$(CONFIG_SAMPLE_HW_BREAKPOINT) += data_breakpoint.o