core/pci: Increase the max slot string size
core/pci: Increase the max slot string size

The maximum string length for the slot label / device location code in
the PCI summary is currently 32 characters. This results in some IBM
location codes being truncated due to their length, e.g.

PHB#0001:02:11.0 [SWDN]  SLOT=C11  x8
PHB#0001:13:00.0 [EP  ] *snip* LOC_CODE=U78D3.ND1.WZS004A-P1-C
PHB#0001:13:00.1 [EP  ] *snip* LOC_CODE=U78D3.ND1.WZS004A-P1-C
PHB#0001:13:00.2 [EP  ] *snip* LOC_CODE=U78D3.ND1.WZS004A-P1-C
PHB#0001:13:00.3 [EP  ] *snip* LOC_CODE=U78D3.ND1.WZS004A-P1-C

Which obscure the actual location of the card, and it looks bad. This
patch increases the maximum length of the label string to 80 characters
since that's the maximum length for a location code.

Signed-off-by: Oliver O'Halloran <3dfaff8fa6ae977f042064a112a6aac576279b9b@gmail.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.ibm.com>

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