Update owners for modprobe.c

Test: treehugger
Change-Id: I5989f49c284b4f06a24b6350a531902832e2eef5
diff --git a/toolbox/OWNERS b/toolbox/OWNERS
index 7529cb9..5e2c581 100644
--- a/toolbox/OWNERS
+++ b/toolbox/OWNERS
@@ -1 +1,2 @@
 include platform/system/core:/janitors/OWNERS
+per-file [email protected],[email protected]