Add joenotcharles to //ipc/SECURITY_OWNERS

Change-Id: I1116d41985a070cc00056205edb5aa7fcf0a9713
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2547629Reviewed-by: Will Harris <wfh@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828878}

ipc/SECURITY_OWNERS

@@ -10,6 +10,7 @@ ajgo@chromium.org
 dcheng@chromium.org
 dominickn@chromium.org
 estark@chromium.org
+joenotcharles@chromium.org
 kenrb@chromium.org
 kerrnel@chromium.org
 kinuko@chromium.org