Set ExclusiveArch/ExcludeArch to the same as libguestfs

Gating test error:

Problems with dependency set:
nothing provides libguestfs >= 1:1.45.6 needed by libguestfs-winsupport-10.0-1.el10.ppc64le

libguestfs-winsupport.spec

@@ -6,13 +6,20 @@
 
 Name:           libguestfs-winsupport
 Version:        10.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Add support for Windows guests to virt-v2v and virt-p2v
 
 URL:            https://www.tuxera.com/company/open-source/
 # and URL:      https://github.com/ebiggers/ntfs-3g-system-compression
 License:        GPLv2+
 
+# These should be the same as libguestfs.spec.
+ExclusiveArch: %{kernel_arches}
+%if 0%{?rhel}
+# No qemu-kvm on POWER (RHBZ#1946532).
+ExcludeArch: %{power64}
+%endif
+
 # This package shouldn't be installed without installing the base
 # libguestfs package.
 Requires:       libguestfs >= 1:1.45.6
@@ -129,10 +136,11 @@ popd
 
 
 %changelog
-* Mon Apr 22 2024 Richard W.M. Jones <rjones@redhat.com> - 10.0-1
+* Mon Apr 22 2024 Richard W.M. Jones <rjones@redhat.com> - 10.0-2
 - Import package into CentOS Stream 10
 - Remove resolves refs to work around check-gitbz bug (RHELBLD-14966)
 - Add gating tests
+- Set ExclusiveArch/ExcludeArch to the same as for libguestfs
 
 * Thu Aug 31 2023 Richard W.M. Jones <rjones@redhat.com> - 9.3-1
 - Rebase to ntfs-3g 2022.10.3