board: freescale: p1_p2_rdb_pc: Do not hang in checkboard()

Like in all other checks in checkboard() function, do not hang on error.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
index b6f0d20..1e6dfe8 100644
--- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
+++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c
@@ -191,7 +191,7 @@
 	if (ret) {
 		printf("%s: Cannot find udev for a bus %d\n", __func__,
 		       bus_num);
-		return -ENXIO;
+		return 0; /* Don't want to hang() on this error */
 	}
 
 	if (dm_i2c_read(dev, 0, &in, 1) < 0 ||