Adds the missing EXPORT_SYMBOL_GPL for getnstimeofday() when
CONFIG_TIME_INTERPOLATION isn't set.  Needed by drivers/char/mmtimer.c
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>