remoteproc: Add recovery configuration to the sysfs interface

Add recovery configuration to the sysfs interface. This will
allow usage of this configuration feature in production
devices where access to debugfs might be limited.

Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/1601662144-5964-4-git-send-email-rishabhb@codeaurora.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>