sparc: time: Remove unneeded linux/miscdevice.h include

arch/sparc/kernel/time_64.c does not contain any miscdevice so the
inclusion of linux/miscdevice.h is unnecessary.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>