test: emulate.pl: fix support for multiple block devices

Block devices on QEMU command line need a unique id. The id factors in
$i, which we failed to increment.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20221010060504.2082266-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/test/emulate.pl b/test/emulate.pl
index 77b751a329..b5e2188b86 100755
--- a/test/emulate.pl
+++ b/test/emulate.pl
@@ -253,6 +253,8 @@ sub emulate {
 		} else {
 		    die "--blk unsupported for target\n";
 		}
+
+		$i++;
 	    }
 
 	    # note that barebox doesn't yet support multiple virtio consoles