msm: camera: reqmgr: Change state check in callbacks

Currently certain callbacks are processed only if the link
is in ready state. This change allows them to processed if
the link is either in ready or error state.

Change-Id: I7a8294c943a10dea968530cb38bfd153146ae86b
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>