Use 'unsigned long long' for __u64 printk:

drivers/w1/w1.c:415: warning: long long unsigned int format, __u64 arg (arg 6)
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>