Update changelog

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/ChangeLog.d/psa-aead-output-size-macros-1.0.txt b/ChangeLog.d/psa-aead-output-size-macros-1.0.txt
index 77d88c7..94a66a5 100644
--- a/ChangeLog.d/psa-aead-output-size-macros-1.0.txt
+++ b/ChangeLog.d/psa-aead-output-size-macros-1.0.txt
@@ -1,7 +1,7 @@
 API changes
    * Update AEAD output size macros to bring them in line with the PSA Crypto
      API version 1.0 spec. This version of the spec parameterizes them on the
-     key type used, as well as the key bitsize in the case of
+     key type used, as well as the key bit-size in the case of
      PSA_AEAD_TAG_LENGTH.
      The old versions of these macros were renamed and deprecated as follows:
      - PSA_AEAD_TAG_LENGTH          -> PSA_AEAD_TAG_LENGTH_1_ARG