chore: add IovDeque fix to the CHANGELOG

Add note about making `IovDeque` to work with any
host page size.

Signed-off-by: Egor Lazarchuk <[email protected]>

Author: ShadowCurse

CHANGELOG.md

@@ -25,6 +25,8 @@ and this project adheres to
 
 - [#4921](https://github.com/firecracker-microvm/firecracker/pull/4921): Fixed
   swagger `CpuConfig` definition to include missing aarch64-specific fields.
+- [#4916](https://github.com/firecracker-microvm/firecracker/pull/4916): Fix
+  `IovDeque` implementation to work with any host page size.
 
 ## \[1.10.1\]