MLK-20935-4 doc: imx: ahab: Fix typo in mx8_mx8x_secure_boot.txt guide

Fix a typo in path provided for imx-mkimage iMX8QM and iMX8QXP directories.

Reported-by: Marius Grigoras <marius.grigoras@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit c75243c1a87a10f003377d9c144bcf412ba80440)
diff --git a/doc/imx/ahab/guides/mx8_mx8x_secure_boot.txt b/doc/imx/ahab/guides/mx8_mx8x_secure_boot.txt
index 56e28d0..ed2346a 100644
--- a/doc/imx/ahab/guides/mx8_mx8x_secure_boot.txt
+++ b/doc/imx/ahab/guides/mx8_mx8x_secure_boot.txt
@@ -326,7 +326,7 @@
   $ cd <work>/imx-mkimage
   $ cp iMX8QX/flash.bin ..
   $ make SOC=iMX8QX flash_linux
-  $ mv i.MX8QX/flash.bin iMX8QX/flash_os.bin
+  $ mv iMX8QX/flash.bin iMX8QX/flash_os.bin
   $ cp iMX8QX/flash_os.bin ..
 
 - On i.MX 8 QM
@@ -334,7 +334,7 @@
     $ cd <work>/imx-mkimage
     $ cp iMX8QM/flash.bin ..
     $ make SOC=iMX8QM flash_linux
-    $ mv i.MX8QM/flash.bin iMX8QM/flash_os.bin
+    $ mv iMX8QM/flash.bin iMX8QM/flash_os.bin
     $ cp iMX8QM/flash_os.bin ..
 
 If the make command ends successfully, the end of the result should look