adding missing newline at the end of changelog file

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/ChangeLog.d/some-max-size-macro-are-too-small-when-psa-ecc-is-accelerated.txt b/ChangeLog.d/some-max-size-macro-are-too-small-when-psa-ecc-is-accelerated.txt
index 9566a03..8cc6e5e 100644
--- a/ChangeLog.d/some-max-size-macro-are-too-small-when-psa-ecc-is-accelerated.txt
+++ b/ChangeLog.d/some-max-size-macro-are-too-small-when-psa-ecc-is-accelerated.txt
@@ -2,4 +2,4 @@
    * Fix proper sizing for PSA_EXPORT_[KEY_PAIR/PUBLIC_KEY]_MAX_SIZE and
      PSA_SIGNATURE_MAX_SIZE buffers when at least one accelerated EC is bigger
      than all built-in ones and RSA is disabled.
-     Resolves #6622.
\ No newline at end of file
+     Resolves #6622.