updated the default value in comment for fSGroupPolicy in powerflex samples #805

Job	Run time
Quality Checks / Malware Scan	55s
Quality Checks / Unit tests and package coverage	2m 29s
Quality Checks / GoSec	1m 33s
Quality Checks / Go Formatter and Vetter	1m 36s
Golang Validation / Lint golang code	1m 22s
Golang Validation / Yaml Lint	25s
	8m 20s

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