gbsim: firmware: drop 'stage' from ready-to-boot request
gbsim: firmware: drop 'stage' from ready-to-boot request

The spec and greybus core says that its not required anymore. Drop it.

Signed-off-by: Viresh Kumar <5ff32272b3d9f86512eddc8e0af523fc6f7924e5@linaro.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@google.com>

projectara/gbsim,gregkh/gbsim,gregkh/gbsim,projectara/gbsim