pmc warnings on stable/9

[Sean Bruno]

I have no idea the significance, or danger.  When compiling on stable/9
I have always seen the following WARNINGS.  Can we silence/fix these?
Or is it supposed to be that way?  :-)

WARNING: hwpmc_soft.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_pmc.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_rwlock.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_sx.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_lock.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_intel.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_tsc.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_amd.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_clock.c: enum pmc_event has too many values: 1531 > 1023
WARNING: kern_mutex.c: enum pmc_event has too many values: 1531 > 1023
WARNING: trap.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_x86.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_uncore.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_piv.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_core.c: enum pmc_event has too many values: 1531 > 1023
WARNING: hwpmc_logging.c: enum pmc_event has too many values: 1531 >
1023
WARNING: hwpmc_mod.c: enum pmc_event has too many values: 1531 > 1023