MIC: update PAPI_FP_INS / PAPI_VEC_INS instruction
MIC: update PAPI_FP_INS / PAPI_VEC_INS instruction

We were using VPU_INSTRUCTIONS_EXECUTED for PAPI_FP_INS but really
it's more appropriate for PAPI_VEC_INS

This leaves PAPI_FP_INS undefined, which breaks a lot of the ctests.
A long term goal should probably be modifying the tests to use another
counter if PAPI_FP_INS isn't available (this affects Ivy Bridge too).

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