Add paulhsia@ to owners

To approve audio patches.

TEST=None
BUG=None

Change-Id: Iad841b764dcd691bdb2a015bf9556156a51161e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2987719
Auto-Submit: Chih-Yang Hsia <paulhsia@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Commit-Queue: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/OWNERS b/OWNERS
index 993fb25..89abc44 100644
--- a/OWNERS
+++ b/OWNERS
@@ -7,3 +7,4 @@
 tjeznach@chromium.org
 zachr@chromium.org
 denniskempin@chromium.org
+paulhsia@chromium.org