syscall: use SYS_EPOLL_WAIT on linux/amd64 for compatibility

[0xAlcidius]

Fixes #24980

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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[gopherbot]

Message from alcidius:

Patch Set 1:

(2 comments)

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[gopherbot]

This PR (HEAD: fbd54f5) has been imported to Gerrit for code review.

Please visit Gerrit at https://go-review.googlesource.com/c/go/+/664676.

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[gopherbot]

Message from Michael Pratt:

Patch Set 3: Hold+1

(1 comment)

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[gopherbot]

Message from alcidius:

Patch Set 3:

(1 comment)

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Message from alcidius:

Patch Set 3:

(1 comment)

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