uksm: fixes for legacy KSM sysfs

During boot, init.cm.rc sets sleep_millisecs and pages_to_scan.  Its
sleep_millisecs value is way too conservative, so block it.  Rescale
pages_to_scan so our default CPU limit lines up with KSM's default.

Conflicts:
	mm/uksm.c
dhd: fix new wakelock code

I really should give this "sleep" thing a try.  I hear it's easier to
think clearly after you do it.

Conflicts:
	drivers/net/wireless/bcmdhd/dhd_linux.c