Update changelog formatting - Missing Free Context

The original formatting was in dos and the changelog
assembler would fail. The length of the description was
too long horizontally. This has been updated.

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
diff --git a/ChangeLog.d/issue4176.txt b/ChangeLog.d/issue4176.txt
index 35cc847..8ca386f 100644
--- a/ChangeLog.d/issue4176.txt
+++ b/ChangeLog.d/issue4176.txt
@@ -1,3 +1,3 @@
-Bugfix

-   * Fix an issue where resource is never freed when running one particular test suite with an alternative AES implementation

-Fixes #4176
\ No newline at end of file
+Bugfix
+   * Fix an issue where resource is never freed when running one particular 
+     test suite with an alternative AES implementation. Fixes #4176