stagefright: Wait longer before force releasing codec

Increase the timeout to 30 secs from 10 in order to give the
components more time to move to idle state, otherwise freeNode
during codec release will also try to move it to idle and bad
things will happen. This is a temporary fix until software
codecs error handling is improved.

Change-Id: I89203bfbce1b81f53ed6e2a33747ec40a786507d