increase OWNERS to the audio/video team

chz@google.com

dwkang@google.com

elaurent@google.com

essick@google.com

hunga@google.com

jmtrivi@google.com

krocard@google.com

lajos@google.com

marcone@google.com

mnaganov@google.com

pawin@google.com

philburk@google.com

pmclean@google.com

rachad@google.com

rago@google.com

robertshih@google.com

wjia@google.com

wonsik@google.com