staging: unisys: virtpci: Fix CamelCase local variables in fix_vbus_dev_info()

Rename the following local variables in fix_vbus_dev_info()
Change pChan to chan
Change devInfo to dev_info

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