jansson: whitelist CVE-2020-36325

According to the upstream [1], the bug happens only if the programmer
does not follow the API definition.

[1] https://github.com/akheron/jansson/issues/548



Upstream-Status: Pending

Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com>

meta-oniro-staging/recipes-extended/jansson/jansson_2.13.1.bbappend

+# upstream considers it isn't a real bug https://github.com/akheron/jansson/issues/548
+CVE_CHECK_WHITELIST = "CVE-2020-36325 "