Added 3 more events for the USIII.
Added 3 more events for the USIII.

FLoating point instructions
Floating point adds
floating point multiplies

Thank you Frederic (and Sun) for putting these counters on board. No more
braindead chips without Floating point counters... Yeah Alpha, that means you.

arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi