Fix unit test

[Issacwww]

Issue #, if available:

Description of changes:
encountered several issue when execute unit test for bottlerocket
1.

# Running tests in gpu_unit_tests/tests/test_basic.sh
common.sh: line 14: nvidia-smi: command not found

fix by adding resource limit
2.
dgcmi not found
fix by installing datacenter-gpu-manager
3. missing file for test-sysinfo, followed the readme to add expected files

testing

k logs unit-test-job-nb6gn
# Running tests in gpu_unit_tests/tests/test_basic.sh
ok - test_01_device_query
ok - test_02_vector_add
ok - test_03_bandwidth
ok - test_04_bus_grind
ok - test_05_dcgm_diagnostics
# Running tests in gpu_unit_tests/tests/test_sysinfo.sh
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:02:03 --:--:--     0
curl: (56) Recv failure: Connection reset by peer
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    10  100    10    0     0  12787      0 --:--:-- --:--:-- --:--:-- 10000
ok - test_numa_topo_topo
ok - test_nvidia_gpu_count
ok - test_nvidia_gpu_throttled
ok - test_nvidia_gpu_unused
not ok - test_nvidia_persistence_status
# Unexpected perfistance status, likely system configuration issue
#  test data value diff:
# --- test_sysinfo.sh.data/g5.8xlarge/nvidia_persistence_status.txt	2024-10-07 22:15:11.000000000 +0000
# +++ /tmp/test_sysinfo.sh.actual-data.tgP/nvidia_persistence_status.txt	2024-10-08 07:37:30.716879902 +0000
# @@ -1,2 +1,2 @@
#  name, pci.bus_id, persistence_mode
# -NVIDIA A10G, 00000000:00:1E.0, Enabled
# +NVIDIA A10G, 00000000:00:1E.0, Disabled
# common.sh:32:_assert_data()
# common.sh:37:assert_data()
# test_sysinfo.sh:52:test_nvidia_persistence_status()
ok - test_nvidia_smi_topo

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