sata: fix sata_Probe return value check

sata_probe returns 1 for failure, so don't checkout for < 0

fixes: f19f1ecb6025 dm: sata: Support driver model with the 'sata' command

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/sata.c b/cmd/sata.c
index cc12afb..4f0c6e0 100644
--- a/cmd/sata.c
+++ b/cmd/sata.c
@@ -107,8 +107,8 @@
 	/* If the user has not yet run `sata init`, do it now */
 	if (sata_curr_device == -1) {
 		rc = sata_probe(0);
-		if (rc < 0)
-			return CMD_RET_FAILURE;
+		if (rc)
+			return rc;
 		sata_curr_device = 0;
 	}