Enable papi multiplexing
Enable papi multiplexing

Enabling multiplexing will make the pmda a bit more flexible for counting
metrics for longer periods of time and for hardware with fewer hardware
counters

wuliming/pcp,adfernandes/pcp,wuliming/pcp,mbaldessari/pcp,adfernandes/pcp,aeg-aeg/pcpfans,tjanez/pcp,mbaldessari/pcp,edwardt/pcp,tjanez/pcp,mbaldessari/pcp,mbaldessari/pcp,andyvand/cygpcpfans,prasincs/pcp,andyvand/cygpcpfans,wuliming/pcp,adfernandes/pcp,aeg-aeg/pcpfans,prasincs/pcp,tjanez/pcp,adfernandes/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,prasincs/pcp,wuliming/pcp,prasincs/pcp,mbaldessari/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,edwardt/pcp,edwardt/pcp,edwardt/pcp,aeg-aeg/pcpfans,edwardt/pcp,mbaldessari/pcp,adfernandes/pcp,edwardt/pcp,tjanez/pcp,prasincs/pcp,prasincs/pcp,andyvand/cygpcpfans,prasincs/pcp,edwardt/pcp,tjanez/pcp,adfernandes/pcp,wuliming/pcp,tjanez/pcp,aeg-aeg/pcpfans,andyvand/cygpcpfans,tjanez/pcp,wuliming/pcp,andyvand/cygpcpfans,tjanez/pcp,wuliming/pcp,adfernandes/pcp,prasincs/pcp,wuliming/pcp,andyvand/cygpcpfans,andyvand/cygpcpfans,adfernandes/pcp,edwardt/pcp,andyvand/cygpcpfans