Skip usbfs_ioctl_pcap on sparc64 #1003

Job	Run time
OS (apt-docker.io/amd64/ubuntu:devel)	2m 2s
OS (apt-docker.io/amd64/ubuntu:latest)	1m 59s
OS (apt-docker.io/amd64/ubuntu:rolling)	1m 51s
OS (apt-docker.io/i386/debian:testing)	1m 44s
OS (apt-docker.io/amd64/debian:testing)	2m 2s
OS (dnf-registry.fedoraproject.org/fedora:latest)	2m 30s
OS (dnf-registry.fedoraproject.org/fedora:rawhide)	2m 35s
OS (alpine-docker.io/alpine)	31s
OS (alpine-docker.io/i386/alpine)	28s
OS ([email protected]/alpine)	59s
OS (nix-docker.io/nixos/nix)	1m 1s
OS (gentoo-)	5m 23s
OS (alpine@gudev-alpine, EXTRA_PACKAGES=libgudev-dev)	35s
	23m 40s

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