GSD-2023-1001561 hamradio: baycom_epp: Fix return type of baycom_send_packet()

hamradio: baycomepp: Fix return type of baycomsendpacket 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 v4.9.337 by commit...