Initialize struct

[y0urself]

What:

• I hope this fixes [20.8.1] Build test fails with missing initializer for field 'tcpv4soc' #433 , actually the compiler is very old, I tried to compile with the same compileoptions -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -g -Wall -Wextra -Werror -std=gnu99 but the warning did not pop up in gcc-8 nor clang-7.

Why:

How:

Checklist:

• Tests
• CHANGELOG Entry