Updated git submodules

Updated git submodules

Project: netconf master 4847272a67171a28011d1c1395a866e1cdd7c973

Merge "Bug 6746 - Restconf: Not working GET operation on mount points"

Bug 6746 - Restconf: Not working GET operation on mount points

- support for reading data on mount points
- improved merge for config and state data:
when identifiers for data in config and state are the same
then merge must by done at one level down, otherwise state
overrides config or vice versa
- identiers are parsed to identifiers context with reference
to mount points when data are behind mount point
- adapted and added unit tests

Change-Id: Iacc45946cc284ae8936f600f5af522926d39c216
Signed-off-by: Ivan Hrasko <ivan.hrasko@pantheon.tech>