ms: add demod test tool and data

It just uses the viterbi equalizer and the sigproclib to generate and
demodulate bursts and prints the bits, only useful for
development.

Change-Id: I852e34d9667d1f12f235f8b3da1fcc0d738b2db9
diff --git a/configure.ac b/configure.ac
index 69055fd..8aecb27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -374,6 +374,7 @@
     tests/CommonLibs/Makefile \
     tests/Transceiver52M/Makefile \
     utils/Makefile \
+    utils/va-test/Makefile \
     doc/Makefile \
     doc/examples/Makefile \
     contrib/Makefile \