Fix DEVICE_RANDOM fread call

size and nitems parameters were the wrong way around, so the call did
not return 1 as expected, meaning DEVICE_RANDOM functionality failed.

Author: kjbracey

source/randLIB.c

@@ -157,7 +157,7 @@ uint64_t randLIB_get_64bit(void)
         return 0;
     }
     uint64_t result;
-    if (fread(&result, 1, sizeof result, random_file) != 1) {
+    if (fread(&result, sizeof result, 1, random_file) != 1) {
         result = 0;
     }
     return result;