selftests/seccomp: Fix spelling mistake "Coud" -> "Could"

There is a spelling mistake in an error message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220504155535.239180-1-colin.i.king@gmail.com

tools/testing/selftests/seccomp/seccomp_bpf.c

@@ -4320,7 +4320,7 @@ static ssize_t get_nth(struct __test_metadata *_metadata, const char *path,
 
 	f = fopen(path, "r");
 	ASSERT_NE(f, NULL) {
-		TH_LOG("Coud not open %s: %s", path, strerror(errno));
+		TH_LOG("Could not open %s: %s", path, strerror(errno));
 	}
 
 	for (i = 0; i < position; i++) {