soc/intel: Treat time-out as failure in HECI

If HECI gets times out when waiting for read slots, there's no need to
read back reply message to decide if the HECI recieve successed or not.
Otherwise, system will stuck after global reset required.

BUG=b:707290799
TEST=Boot up meowth board without battery, and confirm hard reset got
trigged after heci time out.

Change-Id: I7c1655284d7027294d8ff5d6a5dbbebe4cbd0c47
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22910
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/intel/common/block/cse/cse.c

@@ -438,6 +438,10 @@ int heci_receive(void *buff, size_t *maxlen)
 		 */
 		do {
 			received = recv_one_message(&hdr, p, left);
+			if (!received) {
+				printk(BIOS_ERR, "HECI: Failed to recieve!\n");
+				return 0;
+			}
 			left -= received;
 			p += received;
 			/* If we read out everything ping to send more */