pd/juno: Simplify get state request
Created by: tarek-arm
This patch reduces the overhead of queuing events for retrieving the power state of a domain. It also removes a call to the deprecated function fwk_thread_put_event_and_wait().
Signed-off-by: Tarek El-Sherbiny tarek.el-sherbiny@arm.com Change-Id: Id336ce6ccf1023f37970ae562faa5a4ccedb4642