docs/releases/4.19: Add note about ASL 2.0 conversion

Change-Id: I30d827043e3eb3bf21551b1cb6c0b4c369a70083
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71713
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/Documentation/releases/coreboot-4.19-relnotes.md b/Documentation/releases/coreboot-4.19-relnotes.md
index e4dc0af..b6185d3 100644
--- a/Documentation/releases/coreboot-4.19-relnotes.md
+++ b/Documentation/releases/coreboot-4.19-relnotes.md
@@ -59,6 +59,14 @@
 * Upgrade MPFR from 4.1.0 to 4.1.1
 
 
+### Finished the conversion to ASL 2.0 syntax
+
+Until recently, coreboot still contained lots of code using the legacy
+ASL syntax. However, all ASL code was ported over to make use of the
+ASL 2.0 syntax and from this point on new ASL code should make use of
+it.
+
+
 
 Additional coreboot changes
 ---------------------------