We suspect this particular commit introduces this bug, the sample app will not
work with the -U -u and -i options. 

The options worked when I tried with 23.07. I also tried removing this commit
and the options worked again.

Result of git show:

commit ac1edcb6621af6ff3c2b01d40e4dd6ed0527a748
Author: Sivaprasad Tummala <sivaprasad.tummala@amd.com>
Date:   Wed Aug 16 03:09:57 2023 -0700

    power: refactor uncore power management API

    Currently the uncore power management implementation is vendor specific.

    Added new vendor agnostic uncore power interface similar to rte_power
    and rename specific implementations ("rte_power_intel_uncore") to
    "power_intel_uncore" along with functions.

    Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>


DPDK Version: 23.11-rc1
Commands: 
        ./<build_target>/examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P
--config="(0,0,2)" -U
        ./<build_target>/examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P
--config="(0,0,2)" -u
        ./<build_target>/examples/dpdk-l3fwd-power -c 0x6 -n 1 -- -p 0x1 -P
--config="(0,0,2)" -i 2
Error:
        EAL: Error - exiting with code: 1
                Cause: Invalid L3FWD parameters