doc: fix multi-producer enqueue figure in ring guide

The producer head pointer in multi producer enqueue fig.6.10
points to incorrect object in the ring array.

Fixes: fc1f2750a3ec ("doc: programmers guide")
Cc: stable@dpdk.org
Signed-off-by: Prateek Agarwal <prateekag@cse.iitb.ac.in>
Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>

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index da483b0..83ef7db 100644 (file)
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