OMXCodec: enhance error handling of OMX IL client

Original design doesn't handle event EMPTY_BUFFER_DONE and
FILL_BUFFER_DONE which leads to buffer status mess issue,
and in turn leads to mediaserver crash.
Here we will handle those 2 events anyway to fix this.

Change-Id: Ia90b46ea7ec6026d6fda5d33fef6773435788b04
Author: Tianmi Chen<tianmi.chen@intel.com>
Signed-off-by: Tianmi <Chen&lt;tianmi.chen@intel.com>
Signed-off-by: Weian Chen <weian.chen@intel.com>
Signed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 49066, 27054