PM branch updated

[Kevin Hilman <khilman@deeprootsystems.com>]

Hello,

I just pushed an updated PM branch to my linux-omap-pm repo[1], and it
will be sync'd to Tony's linux-omap tree shortly.

What's changed: Not many functional changes, but lots of restructuring
to organize/regroup patches into changesets for upstream.  In addition
to the various fixes coming in from the list, here are some other
user-visible changes:

- 600 MHz OPP (a.k.a. overdrive) allowed in CPUfreq
- default CPUfreq governor: userspace, so default OPP is determined
  by bootloader, and not changed during kernel boot
- UARTs obey /sys/devices/.../power/wakeup
- serial ports separated so each port can be controlled
  separately under /sys/devices

Basic retention/off while idle and suspend testing on the following
OMAP3 boards: 

- 3430SDP (NFS root)
- OMAP3EVM (NFS root)
- Beagle (MMC rootfs)
- RX51 (OneNAND rootfs)
- Overo (Water + Tobi)  (thanks to Gumstix for the hardware!)
  ** Known problems: retention during idle eventually hangs with what
     looks like memory corruption (not debugged further.)  Looks like
     Overo support in linux-omap needs some updates, including a 
     sanity check of the SDRC settings.

Upcoming changes:

The next PM branch will drop the current omapdev code and replace it
with the latest versions of omap_hwmod and omap_device code from Paul
Walmsely.

Kevin