doc/releases: Add 24.02.1 release section

Change-Id: I4d217c3dba4aa3ec30732b914009a6e9d53371c7
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80798
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/Documentation/releases/coreboot-24.02-relnotes.md b/Documentation/releases/coreboot-24.02-relnotes.md
index eb5349e..e4e7892 100644
--- a/Documentation/releases/coreboot-24.02-relnotes.md
+++ b/Documentation/releases/coreboot-24.02-relnotes.md
@@ -31,6 +31,15 @@
 'master' branch have been switched to 'main'.
 
 
+Release 24.02.1
+---------------
+
+### lib/rtc: Fix off-by-one error in February day count in leap year
+
+The month argument passed to rtc\_month\_days is 0-based, not 1-based.
+This results in the RTC being reverted to the build date constantly
+on 29th February 2024.
+
 
 Significant or interesting changes
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