schema parsers BUGFIX instantiating identityref with default value
schema parsers BUGFIX instantiating identityref with default value

Fix in fe31cc0c was not enough, problem occures also in case the module
using the identityref has not imported the identity module or it was
imported with a different prefix

PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang,PavolVican/libyang