media/vaapi: Add andrescj@ to OWNERS.

Bug: None.
Test: None.
Change-Id: I6e9a80823fbc14d93edaecc42b0eea9d5f5d5c13
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2601067Reviewed-by: Kuang-che Wu <kcwu@chromium.org>
Reviewed-by: Jeffrey Kardatzke <jkardatzke@google.com>
Reviewed-by: Miguel Casas <mcasas@chromium.org>
Commit-Queue: Andres Calderon Jaramillo <andrescj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#839474}

media/gpu/vaapi/OWNERS

-dstaessens@chromium.org
-kcwu@chromium.org
 mcasas@chromium.org
-posciak@chromium.org
-
-# (M)JPEG related stuff
-per-file *jpeg*=andrescj@chromium.org
-
-# General VA-API decoding related stuff
-per-file *image_decoder*=andrescj@chromium.org
+andrescj@chromium.org
 
 # For protected-mode video decoding.
 jkardatzke@google.com
+
+# Legacy owners.
+dstaessens@chromium.org
+kcwu@chromium.org
+posciak@chromium.org
\ No newline at end of file