const golang.org/x/sys/unix.BPF_BTF_LOAD

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L2545: 	BPF_BTF_LOAD                               = 0x12

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)