[PATCH 0/5] powerpc: feature fixup updates

Here's a new batch of the feature fixup updates.

Changes since last time:

 - moves identify_cpu() to C code (removes more assembly gunk)
 - works on 32 bits :)
 - invert use of nested in MFTB for the cell fixup
 - adds a patch for fixup in modules support
 - the fixup code does 2 loops as suggested by Olof

The bulk could be merged if you want, except the cell TB fix which still
needs to change to the new workaround method. I haven't had time to
finish that today.