batman-adv: types.h: delete duplicated words

Delete the doubled word "time" in a comment.
Delete the doubled word "address" in a comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>