livedisplay: sysfs: Refine interface registration

 * Move node enumeration to constructor
 * Check support before instancing where possible

Change-Id: I863df54ff2646158d3d9a06acae72dad20c43c2a
9 files changed
tree: 7b89f6d0777bb7ef50273ab0eb4faaae91d5cb2d
  1. legacymm/
  2. sdm/
  3. sysfs/