When display is suspended, driver shouldn't return any resource
back for overlay set.
Change-Id: I8a69efa519ea9a566897b69e345680a2a619fe54
Signed-off-by: Camus Wong <camusw@codeaurora.org>
[zhaoweiliew: Convert panel suspend check references to new ones]
Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>