npu2.c: Fix XIVE IRQ alignment
npu2.c: Fix XIVE IRQ alignment

Signed-off-by: Alistair Popple <e9adbcf81c8a36ccc628e09bc92d0e25e1c8e501@popple.id.au>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

stewart-ibm/skiboot,open-power/skiboot,qemu/skiboot,qemu/skiboot,legoater/skiboot,legoater/skiboot,open-power/skiboot,legoater/skiboot,open-power/skiboot,shenki/skiboot,stewart-ibm/skiboot,qemu/skiboot,shenki/skiboot,qemu/skiboot,open-power/skiboot,legoater/skiboot,stewart-ibm/skiboot,qemu/skiboot,shenki/skiboot,legoater/skiboot,shenki/skiboot,open-power/skiboot,shenki/skiboot