bpf netd.c - switch from 'int direction' to 'bool egress'

and get rid of some macros while we're at it.

This is just slightly easier to read.

(side note: this is all resolved at compile time!)

Bug: 259199087
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I7b38afd4b6f9d73b4f34a90040639f0780544ac8
1 file changed