Fix pci_io_handle allocation routines.
The previous version of new_io_handle() would invalidate all previous allocations when realloc moves the base pointer of the ios array. Since I cannot figure out where this array is useful, just get rid of it, providing sound stable memory allocation. Fixes vgaHWSaveFonts() in 1.12 xserver on OpenBSD, but other sub-systems relaying on pci_io could be affected too. Signed-off-by: Matthieu Herrb <email@example.com> Tested-by: Tormod Volden <firstname.lastname@example.org>