Update git submodules

* Update docs/submodules/yardstick from branch 'stable/euphrates'
  - Auto create ixia config based on the traffic profile

    Change-Id: I031cc7f24f0c0816eb577a4d1606a714f68a5f83
    Signed-off-by: Deepak S <deepak.s@linux.intel.com>
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
  - replace ansible modules

    Change-Id: Ia7c1ce781075142910a6c618a9a23f34a710dfe9
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
  - Adapt getting the image architecture to mcp

    The part which gets the image architecture still uses the old fuel command.
    Adapted the script to use the mcp command.

    JIRA: ARMBAND-285

    Change-Id: Iddce77c3a856ea11f9994861151db89a402e735e
    Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>
  - dpdk: pciutils and lspci is required for dpdk-devbind.py

    Change-Id: I8529f33d849fc659b557e1d19761c0765ebda57e
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
  - Adjusted IPs in some prox tests.

    Change-Id: Iff39fa5b90d1ae5534ce1fff31dfb84c1e47340c
    Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
  - Switched to stable/euphrates for samplevnfs projext

    Change-Id: I0305c263740c25bdfa3bb2667838ca2b75d33ba0
    Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
  - add collectd ansible

    required DPDK fixes to enable building collectd with dpdkstats
    need /usr/lib/dpdk-pmd symlinks

    Compiling all this code requies more space than the default ubuntu
    cloud-image, so we need to resize the cloud image somehow

    Change-Id: Ib39fc94ba8101ca1aebc7d2a710be88b0338f7c3
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
    Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
  - Added hw_vif_multiqueue_enabled metadata to the added samplevnfs image in OpenStack.

    Change-Id: Iad1dce6b0d0a1c010aa62f2fdf54c5d0560ed0c7
    Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
  - vnf_generic: Fix str object has no attribute items

    When an IP range is specified in src_ip/dst_ip like:
    src_ip:
       - '152.16.100.180-152.16.100.181'
    yardstick would return str object has no attribute items error.
    This change will return the IP range as is if type is str.

    Change-Id: I3b097777f0d85b0600207157bebba18987ea2275
    Signed-off-by: Dino Simeon Madarang <dinox.madarang@intel.com>
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
  - NSB: ignore VNF node if there is no VNF model

    Change-Id: I571289c744441a6114c6d45ac6cbd7cfc0dafef2
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
  - collectd: add config file templates as package_data

    needed for pkg_resources.resource_string

    Change-Id: Ief7a8fcd88fd6d371851a26e1559351963979e68
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 3cb7307..8aaa7d2 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 3cb73072d2da631f671ec54f3de518bb781a9623
+Subproject commit 8aaa7d27cd491e8a78421ffcf0af01e6101a0bf4