Bug#949717: Please update Speex and SpeexDSP to latest upstream version 1.2.0

[Amr Ibrahim]

Package: speex

Please update Speex and SpeexDSP to latest upstream version 1.2.0.

https://git.xiph.org/?p=speex.git;a=summary

https://git.xiph.org/?p=speexdsp.git;a=summary