CPPCHECK fixes for printf issues

Fix for following CPPCheck warnings
- invalidPrintfArgType
Rebased with latest develop branch w21.
Reverted modifications unrelated to printf issues.

executables/nr-uesoftmodem.c

@@ -596,7 +596,7 @@ static void init_bler_table(char *env_string) {
 
   for (unsigned int i = 0; i < NR_NUM_MCS; i++) {
     char fName[1024];
-    snprintf(fName, sizeof(fName), "%s/mcs%d_awgn_5G.csv", awgn_results_dir, i);
+    snprintf(fName, sizeof(fName), "%s/mcs%u_awgn_5G.csv", awgn_results_dir, i);
     FILE *pFile = fopen(fName, "r");
     if (!pFile) {
       LOG_E(NR_MAC, "%s: open %s: %s\n", __func__, fName, strerror(errno));