validation: packet: relax small concat test

Limit number of consecutive small concat to fraction of
the number of packets in the pool. An implementation linking
packets together (no copy) cannot be expected to support
one byte concats up to max packet size.

Signed-off-by: Petri Savolainen <petri.savolainen@linaro.org>
Reviewed-by: Bill Fischofer <bill.fischofer@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>

test/common_plat/validation/api/packet/packet.c

@@ -1376,7 +1376,7 @@ void packet_test_concat_small(void)
 	int ret;
 	uint8_t *data;
 	uint32_t i;
-	uint32_t len = 32000;
+	uint32_t len = PACKET_POOL_NUM / 4;
 	uint8_t buf[len];
 
 	CU_ASSERT_FATAL(odp_pool_capability(&capa) == 0);