unicode: kunit: change tests filename and path

Change utf8 kunit test filename and path to follow the style
convention on Documentation/dev-tools/kunit/style.rst

Co-developed-by: Pedro Orlando <porlando@lkcamp.dev>
Signed-off-by: Pedro Orlando <porlando@lkcamp.dev>
Co-developed-by: Danilo Pereira <dpereira@lkcamp.dev>
Signed-off-by: Danilo Pereira <dpereira@lkcamp.dev>
Signed-off-by: Gabriela Bittencourt <gbittencourt@lkcamp.dev>
Reviewed-by: David Gow <davidgow@google.com>
Acked-by: Gabriel Krisman Bertazi <krisman@suse.de>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Rae Moar <rmoar@google.com>
Link: https://lore.kernel.org/r/20241202075545.3648096-7-davidgow@google.com
Signed-off-by: Kees Cook <kees@kernel.org>

fs/unicode/Makefile

@@ -4,7 +4,7 @@ ifneq ($(CONFIG_UNICODE),)
 obj-y			+= unicode.o
 endif
 obj-$(CONFIG_UNICODE)	+= utf8data.o
-obj-$(CONFIG_UNICODE_NORMALIZATION_KUNIT_TEST) += utf8-selftest.o
+obj-$(CONFIG_UNICODE_NORMALIZATION_KUNIT_TEST) += tests/utf8_kunit.o
 
 unicode-y := utf8-norm.o utf8-core.o
 

fs/unicode/tests/utf8_kunit.c

@@ -8,7 +8,7 @@
 #include <linux/unicode.h>
 #include <kunit/test.h>
 
-#include "utf8n.h"
+#include "../utf8n.h"
 
 static const struct {
 	/* UTF-8 strings in this vector _must_ be NULL-terminated. */