Bug 8533: Not possible to invoke RPC on mount points with new Restconf
- put identifer of RPC into InstanceIdentiferContext
instead of mount point identifer which leads to fail
in unit test
- when working with mount point use mount point's
schema context to find RPC module, previously used
controller's schema context leads to NPE
- repaired imports in RestconfApplication to use
new implementation
Change-Id: Ieb46b050e881c89ea58bb9f521be69554733d575
Signed-off-by: Ivan Hrasko <ivan.hrasko@pantheon.tech>