qca-wifi: Fix compilation warning in peerstats

Fix compilation warning:
 format '%u' expects argument of type 'unsigned int',
 but argument 2 has type 'long unsigned int' [-Wformat=]

Change-Id: I59b616b946ad9548379e7350b346c7688fbcf37c

tools/linux/peerstats.c

@@ -260,7 +260,11 @@ dp_peer_tx_sojourn_stats_print(uint8_t *peer_mac,
 		      sojourn_stats->sum_sojourn_msdu[tid],
 		      sojourn_stats->num_msdus[tid]);
 	}
-	PRINT("sizeof(avg): %"PRIu32,
+#ifdef __LP64__
+	PRINT("sizeof(avg) : %"PRIu64,
+#else
+	PRINT("sizeof(avg) : %"PRIu32,
+#endif
 				sizeof(sojourn_stats->avg_sojourn_msdu[tid]));
 	PRINT("\n...........................................");
 	PRINT("...................................");