Merge remote-tracking branch 'origin/fix-OAI_RNGSEED-usage' into integration_2025_w49 (!3786)

Consistently use OAI_RNGSEED env variable for RNG

use OAI_RNGSEED env variable everywhere. Hide normal table
initialization of Ziggurat generator from outside. Fix atoi() to use
stroul()

executables/lte-softmodem.c

@@ -405,7 +405,6 @@ int main ( int argc, char **argv )
 #if T_TRACER
   T_Config_Init();
 #endif
-  //randominit (0);
   set_taus_seed (0);
   printf("configuring for RAU/RRU\n");
 

executables/lte-uesoftmodem.c

@@ -492,7 +492,6 @@ int main( int argc, char **argv ) {
 #if T_TRACER
   T_Config_Init();
 #endif
-  //randominit (0);
   set_taus_seed (0);
   cpuf=get_cpu_freq_GHz();
   pthread_cond_init(&sync_cond,NULL);

executables/nr-softmodem.c

@@ -546,7 +546,6 @@ int main( int argc, char **argv ) {
 #if T_TRACER
   T_Config_Init();
 #endif
-  //randominit (0);
   set_taus_seed (0);
 
   cpuf=get_cpu_freq_GHz();

executables/nr-uesoftmodem.c

@@ -340,7 +340,6 @@ int main(int argc, char **argv)
   T_Config_Init();
 #endif
   initTpool(get_softmodem_params()->threadPoolConfig, &(nrUE_params.Tpool), cpumeas(CPUMEAS_GETSTATE));
-  //randominit (0);
   set_taus_seed (0);
 
   if (!has_cap_sys_nice())