Merge tag 'fix-v3.17-io-chain-v3' into omap-for-v3.18/tmp-merge

Regression fix for early omap3 revisions for wake-up events that
too some time to narrow down. Although a bit intrusive, this would
be good to get into the -rc cycle as there are quite a few boards
out there with omap3 es2.1 and es3.0, and we have those in at least
three boot test systems too that show errors without this patch.

Conflicts:
	arch/arm/mach-omap2/prm3xxx.c