Transceiver52M: Generate RACH correlation sequence at initialization

There is no temporal dependency on when the RACH sequence is generated,
so there is no need for transceiver to create it in response to a
command from GSM core. If we power on the transceiver, we will need
the RACH sequence, so just allocate it during initialization.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
diff --git a/Transceiver52M/sigProcLib.h b/Transceiver52M/sigProcLib.h
index a9fabb0..ee152d5 100644
--- a/Transceiver52M/sigProcLib.h
+++ b/Transceiver52M/sigProcLib.h
@@ -100,7 +100,7 @@
 float vectorPower(const signalVector &x);
 
 /** Setup the signal processing library */
-void sigProcLibSetup(int sps);
+bool sigProcLibSetup(int sps);
 
 /** Destroy the signal processing library */
 void sigProcLibDestroy(void);