regulator: core: fix debugfs files creation for consumer regulators

Some regulator debugfs files such as force_disable, voltage, mode
and load are not created for the regulators that are registered
before their supplies are resolved. Fix this by creating debugfs
entries after the supplies are resolved.

CRs-Fixed: 2136750
Change-Id: I384b55be185ed2b2e4c6ef126731f62e70775762
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>