The 'name' field for some resources is called something different,
for example 'display_name' for volumes, 'name' for volumes type.
So class 'resource' has attribute 'NAME_ATTR' wich contains
attribute name for different resources.
This change removes reduntant call find in resource manager, instead
of it checks NAME_ATTR value.
Related-Bug: #1449444
Change-Id: Ide334d7535c73cbdff72c30319eb539d8f5304d6
c5c2d67b7f