EDGE: Fix demodulation slicer input

EDGE 8-PSK soft slicer was receiving input from the output of the
downsampler. Equalization and derotation were missing causing the
soft symbol output to be invalid.

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>

Transceiver52M/sigProcLib.cpp

@@ -2089,7 +2089,7 @@ SoftVector *demodEdgeBurst(signalVector &burst, int sps,
   rot = derotateEdgeBurst(*eq, 1);
 
   /* Soft slice and normalize */
-  bits = softSliceEdgeBurst(*dec);
+  bits = softSliceEdgeBurst(*rot);
   vectorSlicer(bits);
 
   delete dec;