staging: unisys: virtpci: Use a single blank line to separate code blocks

Remove one blank line of two between function variable declaration and implementation in
virt_pci_mod_init().

Signed-off-by: Bryan Thompson <bryan.thompson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>