OWNERS: Add * to .gyp{i,} everywhere.

Also convert DOS->Unix line endings in two of the OWNERS files.

NOTRY=True
NOPRESUBMIT=True
R=niklas.enbom@webrtc.org

Review URL: https://codereview.webrtc.org/1530003003 .

Cr-Commit-Position: refs/heads/master@{#11056}

webrtc/modules/video_coding/OWNERS

@@ -1,4 +1,9 @@
 stefan@webrtc.org
 marpan@webrtc.org
 
+# These are for the common case of adding or renaming files. If you're doing
+# structural changes, please get a review from a reviewer in this file.
+per-file *.gyp=*
+per-file *.gypi=*
+
 per-file BUILD.gn=kjellander@webrtc.org