vlib: allocate pci product_name with vec_alloc
vlib: allocate pci product_name with vec_alloc

The pci device product_name array was being allocated with vec_validate, not
vec_alloc. This was allocating an additional byte at the end of the array, which
was causing a spurious '\0' to be returned in the middle of format strings.

Type: fix
Fixes: cef87f1a5e

Signed-off-by: Ray Kinsella <64a50932049ddff830412e0fd9edb30198bf17f3@ashroe.eu>
Change-Id: I21e0aa4f0455ee03bd0acc675d0deae02eddea2b

FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp