[WATCHDOG] removes pci_find_device from i6300esb.c

This patch changes pci_find_device to pci_get_device
(encapsulated in for_each_pci_dev) in i6300esb watchdog
card with appropriate adding pci_dev_put.

Generated in 2.6.13-rc5-mm1 kernel version.

Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>