nfp: flower: Fix a potential leak in nfptunneladdsharedmac()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.16.12 by commit 4086d2433576baf85f0e538511df97c8101e0a10, it was introduced in version v5.1 by commit 20cce88650981ec504d328dbbdd004d991eb8535. For more details please see the references link.