staging tree merge for 3.12-rc1

Here's the bit staging tree pull request for 3.12-rc1.

Lots of staging driver updates, and fixes.  Lustre is finally enabled in
the build, and lots of cleanup started happening in it.  There's a new
wireless driver in here, and 2 new TTY drivers, which cause the overall
lines added/removed to be quite large on the "added" side.

The IIO driver updates are also coming through here, as they are tied to
the staging iio drivers.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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