Doc/mb/starlabs/lite_adl.md: Fix embedded rST syntax

MyST Parser uses {eval-rst} to denote embedded reStructuredText blocks,
instead of eval_rst as used previously by recommonmark.

Change-Id: I1f16d594af41a13762ba299b8d4f9d88e59c68ed
Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83978
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>

Documentation/mainboard/starlabs/lite_adl.md

@@ -59,7 +59,7 @@ make
 
 ## Flashing coreboot
 
-```eval_rst
+```{eval-rst}
 +---------------------+------------+
 | Type                | Value      |
 +=====================+============+