This change is done to make keeping track of sample counter
at the input of the resampler easier from blocks connected
to its output. Each tag leaving the resampler has accompanying
"original_offset" tag with its offset before sample rate change.
Change-Id: Iea8ca4a092029f774406dced8a97a17810f21f62
When tag appears at the last sample of the ouput buffer
it will be added again in the next run of the work function.
Here this issue was solved by changing the codition so the
tag appearing at the end of the output buffer is not added.
Change-Id: Ia4f0923e2071184879a023d0fe01026d8e9ccbda