CRAS: messages - Remove unsized arrays.

Having these arrays sized will make tools like ASAN better able to
detect if anything writes past the end of the arrays.

Change-Id: I4f4a6c6761049a7fcb28b1f228bfabdaf1763190
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1100083
Reviewed-by: Hsinyu Chao <hychao@chromium.org>
1 file changed