Update git submodules

* Update docs/submodules/samplevnf from branch 'stable/fraser'
  - Fix potential crash with latency accuracy
    
    Detect, remember and skip bad/unexpected packets:
    - too short to hold the latency-related values
    - with bad signature
    - with invalid generator_id
    using a uint64_t-based bitmap.
    
    Also moved variable declarations closer to usage,
    added some likely/unlikely hints,
    reworked some return statements, and
    fixed 32-bit overflow (every ~4s) of rx_time_err computation.
    
    Change-Id: Ib2aadc1af6b7a68601cc080ba66b10d41ff9a64e
    Signed-off-by: Patrice Buriez <patrice.buriez@intel.com>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/samplevnf b/docs/submodules/samplevnf
-Subproject 692702c10772e13b533c908ed3f95a430ad476c
+Subproject fc6a8370e48cdf5fc9a77ab8e428c00c7b3e409