kvargs: rework process API

The rte_kvargs_process() was used to handle:
- key=value (e.g. socket_id=0),
- key (e.g. socket_id).

But many drivers callback only handle key=value, which results in
cr

kvargs: rework process API

The rte_kvargs_process() was used to handle:
- key=value (e.g. socket_id=0),
- key (e.g. socket_id).

But many drivers callback only handle key=value, which results in
crashes if being passed only-key.
Rather than go and fix all drivers as proposed in the link mentioned
below:
- a new API rte_kvargs_process_opt() was introduced: it inherits the
function of rte_kvargs_process() which could handle both key=value and
only-key cases.
- the original rte_kvargs_process() is now limited to the key=value cases,
it will return -1 when handle only-key case,

This patch also makes sure that both process API reject a NULL kvlist
parameter.

Link: https://patches.dpdk.org/project/dpdk/patch/20230320092110.37295-1-fengchengwen@huawei.com/
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>

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version: 24.11-rc0

Start a new release cycle with empty release notes.

The ABI version becomes 25.0.
The map files are updated to the new ABI major number (25).
The ABI exceptions are dropped and C

version: 24.11-rc0

Start a new release cycle with empty release notes.

The ABI version becomes 25.0.
The map files are updated to the new ABI major number (25).
The ABI exceptions are dropped and CI ABI checks are disabled because
compatibility is not preserved.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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kvargs: promote some function as stable

The function rte_kvargs_get_with_value was added in 21.11
so experimental flag can be removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

kvargs: promote some function as stable

The function rte_kvargs_get_with_value was added in 21.11
so experimental flag can be removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

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