scripts/update-linux-headers: Add bits.h to file imports

Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

scripts/update-linux-headers.sh

@@ -169,7 +169,7 @@ rm -rf "$output/linux-headers/linux"
 mkdir -p "$output/linux-headers/linux"
 for header in const.h stddef.h kvm.h vfio.h vfio_ccw.h vfio_zdev.h vhost.h \
               psci.h psp-sev.h userfaultfd.h memfd.h mman.h nvme_ioctl.h \
-              vduse.h iommufd.h; do
+              vduse.h iommufd.h bits.h; do
     cp "$tmpdir/include/linux/$header" "$output/linux-headers/linux"
 done