Staging: vt665*: fix printk formats

Fix printk format warnings in vt665[56]:

drivers/staging/vt6655/wpa.c:150: warning: format '%ld' expects type 'long int', but argument 3 has type 'unsigned int'
drivers/staging/vt6655/wpa.c:181: warning: format '%ld' expects type 'long int', but argument 3 has type 'unsigned int'

drivers/staging/vt6656/wpa.c:150: warning: format '%ld' expects type 'long int', but argument 3 has type 'unsigned int'
drivers/staging/vt6656/wpa.c:181: warning: format '%ld' expects type 'long int', but argument 3 has type 'unsigned int'
drivers/staging/vt6656/firmware.c:804: warning: format '%ld' expects type 'long int', but argument 3 has type 'unsigned int'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>