NetBpfLoad: add more using statements

To shorten lines.

Now:
  egrep 'base:' NetBpfLoad.cpp
only finds the 'using' statements.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I8b125c420c106e4b9c2af0a4fa2e4892a08bb152
1 file changed