Merge remote-tracking branch 'origin/oran-iova-config' into integration_2025_w02 (!3189)

fhi_72: allow to provide dpdk_iova_mode to xran

- Introduce a gNB configuration option that enables users to select the
  desired IOVA mode for DPDK ("PA" or "VA") with dpdk_iova_mode
  parameters in fhi_72 configuration section. If not set, the default
  remains PA mode to ensure backward compatibility with existing
  configurations. Detailed information about IOVA modes, including their
  advantages and disadvantages, can be found in the DPDK documentation:
  Memory in DPDK Part 2: Deep Dive into IOVA
- Using IOVA VA mode allows DPDK to run without requiring SYS_ADMIN
  capability for the docker container.
- Switch to IOVA VA mode in the FHI7.2 pipeline and reduce the required
  capabilities for the docker container.

ci-scripts/conf_files/gnb.sa.band77.273prb.fhi72.4x4.2L-metanoia.conf

@@ -235,6 +235,7 @@ log_config :
 
 fhi_72 = {
   dpdk_devices = ("0000:c3:11.0", "0000:c3:11.1");
+  dpdk_iova_mode = "VA";
   system_core = 0;
   io_core = 1;
   worker_cores = (2);

ci-scripts/yaml_files/sa_fhi_7.2_metanoia_2x2_gnb/docker-compose.yml

@@ -2,7 +2,6 @@ services:
     oai-gnb:
         image: ${REGISTRY:-oaisoftwarealliance}/oai-gnb-fhi72:${TAG:-develop}
         cap_add:
-            - SYS_ADMIN
             - IPC_LOCK
             - SYS_NICE
         cap_drop: