rf_zmq: increase default ZMQ timeout to 2s

amarisoft flags an RF error and exits after not receiving samples
for the radio. Running with ZMQ in the RFCI, the UE sometimes needs more
time to start up due to slow processing and no fftw wisdom file and
then Amarisoft eNB times out. This gives the whole process a little
bit more time. Should we still find it too short we may increase
it further.

lib/src/phy/rf/rf_zmq_imp_trx.h

@@ -32,7 +32,7 @@
 #define NSAMPLES2NBYTES(X) (((uint32_t)(X)) * sizeof(cf_t))
 #define NBYTES2NSAMPLES(X) ((X) / sizeof(cf_t))
 #define ZMQ_MAX_BUFFER_SIZE (NSAMPLES2NBYTES(3072000)) // 10 subframes at 20 MHz
-#define ZMQ_TIMEOUT_MS (1000)
+#define ZMQ_TIMEOUT_MS (2000)
 #define ZMQ_BASERATE_DEFAULT_HZ (23040000)
 #define ZMQ_ID_STRLEN 16
 #define ZMQ_MAX_GAIN_DB (30.0f)