/usr/src/linux-headers-4.18.0-13-generic/include/soc is in linux-headers-4.18.0-13-generic 4.18.0-13.14~18.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/src/linux-headers-4.18.0-13-generic/include/../../linux-headers-4.18.0-13/include/soc