Add mbonadei@ to build configs OWNERS.

Bug: None
Change-Id: I40f312fd57c210e68e2cd74e99c63e4a01a4268f
No-Try: True
Reviewed-on: https://webrtc-review.googlesource.com/84282
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23684}
diff --git a/OWNERS b/OWNERS
index fa1f7b1..587f727 100644
--- a/OWNERS
+++ b/OWNERS
@@ -7,9 +7,9 @@
 tina.legrand@webrtc.org
 tommi@webrtc.org
 per-file .gitignore=*
-per-file .gn=phoglund@webrtc.org
-per-file *.gn=phoglund@webrtc.org
-per-file *.gni=phoglund@webrtc.org
+per-file .gn=mbonadei@webrtc.org
+per-file *.gn=mbonadei@webrtc.org
+per-file *.gni=mbonadei@webrtc.org
 per-file *.py=phoglund@webrtc.org
 per-file AUTHORS=*
 per-file BUILD.gn=phoglund@webrtc.org