app/compress-perf: fix cycle count operations allocation

app/compress-perf: fix cycle count operations allocation

In cyclecount main_loop function, each iteration it tries to
enqueue X ops, in case Y<X ops were enqueued, the rest of the
X-Y ops are moved to the beginning of the ops array, to preserve
ops order, and next Y ops are allocated for the next enqueue
action, the allocation of the ops occurs on the first Y entries
in the array, when it should have skipped the first X-Y
array entries and allocate the following Y entries.

Fix the allocation by adding the correct offset.

Fixes: 2695db95a147 ("test/compress: add cycle-count mode to perf tool")
Cc: stable@dpdk.org
Signed-off-by: Raja Zidane <rzidane@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>