Describe the bug
This fails to compile in 4.5.0-beta1

To Reproduce
Steps to reproduce the behavior:

1. sudo apt install -y libxdp-dev libbpf-dev
2. ./configure
3. make

Expected behavior
compiles

Screenshots

  CCLD     tcpreplay
/usr/bin/ld: tcpreplay-send_packets.o: in function `check_packet_fits_in_umem_frame':
/home/fklassen/git/tcpreplay/build/src/../../src/send_packets.c:1262: undefined reference to `free_umem_and_xsk

System (please complete the following information):

• OS: Linux Debian
• OS version: Buster
• Tcpreplay Version: 4.5.0-beta1

Additional context
something got dropped in the merge