At the time of unbind, all debugfs entry needs to be properly
clean up. This change adds debugfs directory removal alongwith
entries under debugfs root entry.
CRs-Fixed: 2675526
Change-Id: I3eba11db032dbafe5f7d444e8c5a823639ba0e74
Signed-off-by: Jigarkumar Zala <jzala@codeaurora.org>