Enhancement proposal: Dedicate CPU resources for DPDK-based vSwitch/vRouter

Adds enhancement proposal for dedicating CPUs exclusively for infrastructure
networking workloads (OVS-DPDK, OpenPErouter). Introduces two new PerformanceProfile
API fields: spec.cpu.dedicated and spec.net.disableOvsDynamicPinning.

Tracking: CNF-22582, RFE-8921

AIA Human-AI blend, New content, Human-initiated, Reviewed, Claude Opus 4.6 v1.0

Signed-off-by: Talor Itzhak <titzhak@redhat.com>

Author: Tal-or