benetel: driver for Benetel's 4G and 5G RRUs

This commit contains work done by Eurecom and by Benetel.

common/utils/utils.c

@@ -105,3 +105,9 @@ char *itoa(int i) {
   return strdup(buffer);
 }
 
+void *memcpy1(void *dst,const void *src,size_t n) {
+
+  void *ret=dst;
+  asm volatile("rep movsb" : "+D" (dst) : "c"(n), "S"(src) : "cc","memory");
+  return(ret);
+}