Always use OWNERS from master branch.

Since you cannot include yourself we need an extra level of indirection,
to make sure that OWNERS remains current even in historical branches.

Test: N/A
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ie3a4903cd4b115eddb60c75b00534e9a4fdcedda
diff --git a/OWNERS_bpf b/OWNERS_bpf
new file mode 100644
index 0000000..094de96
--- /dev/null
+++ b/OWNERS_bpf
@@ -0,0 +1,5 @@
+connoro@google.com
+lorenzo@google.com
+maze@google.com
+smoreland@google.com
+sspatil@google.com