cpuidle: Make drivers initialize polling state

Make the drivers that want to include the polling state into their
states table initialize it explicitly and drop the initialization of
it (which in fact is conditional, but that is not obvious from the
code) from the core.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Tested-by: Sudeep Holla <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
5 files changed