[NAN] Reorder parameters of send message method(s) per API review

Move messageId before message in the argument list.

(cherry-pick of commit 3da7c88425d826e1a5e662f3d8671900e2ad15e5)

Bug: 31470256
Test: unit tests & integration (sl4a) tests.
Change-Id: I6bfd673a0f92d9908c5b837b713120927b1a0123
2 files changed