Update checkedeps.py rules in DEPS.
Update checkedeps.py rules in DEPS.

Add allow-rules as well in addition to the
disallow-rule in r7014.

BUG=
TBR=tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/14279005

git-svn-id: 917f5d3ca488f358c4d40eaec14422cf392ccec9@7020 4adac7df-926f-26a2-2b94-8c16560cd09d

TimothyGu/libilbc,ShiftMediaProject/libilbc,mwgoldsmith/libilbc,mwgoldsmith/libilbc,mwgoldsmith/ilbc,mwgoldsmith/ilbc,TimothyGu/libilbc,TimothyGu/libilbc,mwgoldsmith/libilbc,mwgoldsmith/ilbc,ShiftMediaProject/libilbc,mwgoldsmith/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,mwgoldsmith/ilbc