Vidc: Treat Non-IDR frame type error as bit stream error

Hardware error is being generated from driver when video
core returns NON IDR frame type error during thumbnail
decoding. This change handles this error by treating
it as BIT_STREAM_ERR.

Change-Id: I16a19eea679d42a22b336d6ebbd0bd1f57c0a8a4
CRs-fixed: 414858
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>