Revert "revert hacks for the previous misuse of __cpuinit for hotplug only functions"

This reverts commit 9d5a1fbef73966b315ae5796f3a9c4b42dd44142.
Fix all the rest of the mismatches... kernel builds normally now

Change-Id: I2ed3682c12486834dcefebc58d4a507a3a3b6dc9