Add the arm_perf_exploit

I won't push this out until the fix hits -stable kernels, but
I want this under version control.
Urgh, rename to proper name.

I'm too lazy to figure out the proper git way to fix this.
arm_perf_exploit: Update with some more documentation.

Code also verified to run on Beagleboard.  This was an extra
challenge as the Beagleboard USB/Ethernet is broken in 3.11-rc
arm_perf_exploit:  Update with newest info

More tests, plus a CVE and fix is in 3.11-rc6
arm_perf_exploit: stable kernels with fix now released
arm_perf_exploit: a little bit more info
arm_perf_exploit: make CVE more prominent
arm_validate_event_oops: Update code comments

Reflect that the fix has finally been committed.
arm_map_hw_event_oops:  update comments

This has been fixed in 3.11-rc6
had wrong git commit for the validate_event_oops fix