syscall: Faccessat checks wrong group [1.17 backport]

[gopherbot]

@neild requested issue #52313 to be considered for backport to the next 1.17 minor release.

@gopherbot please open backport issues.

[gopherbot]

Change https://go.dev/cl/401078 mentions this issue: [release-branch.go1.17] syscall: check correct group in Faccessat

[gopherbot]

Closed by merging 04781d1 to release-branch.go1.17.