avahi: update CVE id fixed by local-ping.patch

CVE-2021-36217 is treated as a duplicate of CVE-2021-3502.
Update the local-ping.patch to mark it resolve both.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>