Staging: cpc-usb: fix printk format warnings

Fix this warnings:
cpc-usb_drv.c:478: warning: format '%d' expects type 'int',
	but argument 4 has type 'size_t'
cpc-usb_drv.c:1034: warning: format '%d' expects type 'int',
	but argument 3 has type 'long unsigned int'

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>