target: Fix page length in emulated INQUIRY VPD page 86h

The LSB of the page length is at offset 3, not 2.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 8013a5a..831468b 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -478,7 +478,7 @@
 	if (cmd->data_length < 60)
 		return 0;
 
-	buf[2] = 0x3c;
+	buf[3] = 0x3c;
 	/* Set HEADSUP, ORDSUP, SIMPSUP */
 	buf[5] = 0x07;