scripts/update-linux-headers: Add Nitro Enclaves header

We want to enable QEMU to drive the /dev/nitro_enclaves device node. Add
its UAPI header into our kernel sync so we have all defines we need to
drive it.

Signed-off-by: Alexander Graf <graf@amazon.com>
Link: https://lore.kernel.org/r/20260225220807.33092-2-graf@amazon.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

scripts/update-linux-headers.sh

@@ -254,6 +254,7 @@ for i in "$hdrdir"/include/linux/*virtio*.h \
          "$hdrdir/include/linux/kvm_para.h" \
          "$hdrdir/include/linux/vhost_types.h" \
          "$hdrdir/include/linux/vmclock-abi.h" \
+         "$hdrdir/include/linux/nitro_enclaves.h" \
          "$hdrdir/include/linux/sysinfo.h"; do
     cp_portable "$i" "$output/include/standard-headers/linux"
 done