Resolve decoding of a bitstream with first frame lost

Closes #2011 (closed)

This is a proposal which fixes:

1. the decoder output being 20ms shorter than expected
2. crash for split-rendering decoding. The split-rendering decoding, however, is still buggy, see ivas-codec-pc/ivas-codec#1379.

in case that the first frame is lost and non-JBM output.

Some notes:

1. I did not check JBM cases.
2. If this MR is found useful, I can prepare its counterpart for ivas-float-update.
3. It is strange to me that all CI tests are BE, I expected that all 5% FER cases will be non-BE.