package/libcoap: ignore CVE-2023-35862

According to a collaborator [0] the affected code isn't in 4.3.1

[0]: https://github.com/obgm/libcoap/issues/1117

Signed-off-by: Daniel Lang <dalang@gmx.at>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 20c023a3b1363f914a18652a79f83648af2cf1e6)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libcoap/libcoap.mk

@@ -16,6 +16,8 @@ LIBCOAP_CONF_OPTS = \
 LIBCOAP_AUTORECONF = YES
 # 0001-Backport-fix-for-CVE-2023-30362.patch
 LIBCOAP_IGNORE_CVES += CVE-2023-30362
+# Doesn't affect 4.3.1, see https://github.com/obgm/libcoap/issues/1117
+LIBCOAP_IGNORE_CVES += CVE-2023-35862
 
 ifeq ($(BR2_PACKAGE_GNUTLS),y)
 LIBCOAP_DEPENDENCIES += gnutls