[receiver/hostmetricsreceiver] Add support for cpu frequency metric #61756

Job	Run time
windows-unittest-matrix (receiver-0)	28m 46s
windows-unittest-matrix (receiver-1)	28m 51s
windows-unittest-matrix (processor)	20m 48s
windows-unittest-matrix (exporter)	29m 1s
windows-unittest-matrix (extension)	18m 14s
windows-unittest-matrix (internal)	19m 16s
windows-unittest-matrix (pkg)	16m 8s
windows-unittest-matrix (cmd)	29m 3s
windows-unittest-matrix (other)	28m 49s
windows-unittest	0s
	3h 38m 56s

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