jhibbits e1ef3c8ce3 Fix e500mc/derivatives cpu idle
Setting the doze registers wasn't actually working, and was being masked by a
bad #ifdef.  Since the #ifdef was fixed, now e500mc-based SoCs hang at idle.
Fix this by using the intended wait.

MFC after:	1 week
2016-10-05 04:40:48 +00:00
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