igc: Prefer strscpy over strlcpy

Use the strscpy method instead of strlcpy method.

See: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr


_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>