linux-gen: sched: SP scheduler implementation
linux-gen: sched: SP scheduler implementation

This is initial implementation of strict priority scheduler.
SP scheduler will not be optimized for throughput, but for low
latency processing of high priority events. Implementation may
have limited support on various scheduler features (e.g. ordered
queues) and low number of priorities, groups, etc.

Signed-off-by: Petri Savolainen <d528fd253b9aaf78fa72edbcc6249e82047f6ce6@nokia.com>
Reviewed-and-tested-by: Bill Fischofer <52f3c909d51cc5d355a68a403df6906b3c1a8f83@linaro.org>
Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

nmorey/odp,mike-holmes-linaro/odp,erachmi/odp,mike-holmes-linaro/odp,erachmi/odp,erachmi/odp,ravineet-singh/odp,ravineet-singh/odp,nmorey/odp,mike-holmes-linaro/odp,erachmi/odp,nmorey/odp,ravineet-singh/odp,ravineet-singh/odp,dkrot/odp,dkrot/odp,dkrot/odp,nmorey/odp,mike-holmes-linaro/odp,dkrot/odp