spapr_pci: Fix endianness in assigned-addresses property

reg->phys_hi and assigned->phys_hi are big endian but we do an extra
byteswap anyway when copying reg->phys_hi to assigned->phys_hi.
To make things slightly more messy, we also add a relocatable bit (b_n())
although in the right endianness.

This fixes endianness of assigned->phys_hi.

This is unlikely to produce any visible difference though as we should end up
there only in the case of PCI hotplug and even then I am not sure if
(d->io_regions[i].addr == PCI_BAR_UNMAPPED) == true.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

hw/ppc/spapr_pci.c

@@ -964,7 +964,7 @@ static void populate_resource_props(PCIDevice *d, ResourceProps *rp)
         }
 
         assigned = &rp->assigned[assigned_idx++];
-        assigned->phys_hi = cpu_to_be32(reg->phys_hi | b_n(1));
+        assigned->phys_hi = cpu_to_be32(be32_to_cpu(reg->phys_hi) | b_n(1));
         assigned->phys_mid = cpu_to_be32(d->io_regions[i].addr >> 32);
         assigned->phys_lo = cpu_to_be32(d->io_regions[i].addr);
         assigned->size_hi = reg->size_hi;