eth: tg3: silence the GCC 12 array-bounds warning
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 v5.10.121 by commit 340cf91293a3e6477daef1d883ace10c327d7cc9. For more details please see the references link.