Fix Coverity Scan CID 21734 (Variable Sparams going out of scope leaks the storage it points to.)

openair2/RRC/LTE/rrc_eNB.c

@@ -3422,6 +3422,9 @@ void rrc_eNB_generate_defaultRRCConnectionReconfiguration(const protocol_ctxt_t
                size,
                buffer,
                PDCP_TRANSMISSION_MODE_CONTROL);
+
+  free(Sparams);
+  Sparams = NULL;
 }
 
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