hw/npu.c: Fix reserved PE#
hw/npu.c: Fix reserved PE#

Currently the reserved PE is set to NPU_NUM_OF_PES, which is one
greater than the maximum PE resulting in the following kernel errors
at boot:

[    0.000000] pnv_ioda_reserve_pe: Invalid PE 4 on PHB#4
[    0.000000] pnv_ioda_reserve_pe: Invalid PE 4 on PHB#5

Due to a HW errata PE#0 is already reserved in the kernel, so update
the opal-reserved-pe device-tree property to match this.

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

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