Introduce libspeex_googletts, with more speex code.

libspeex_googletts is a static library, intended for
linking against googletts (vendor/unbundled_google/packages/GoogleTTS).
This removes the need for a separate speex repository in googletts
repo.

Change-Id: I8e129c188bd15b7ea06fab8da6a7cfccb4f202d3
1 file changed