Added ChangeLog entry

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/ChangeLog.d/add-psa-example-program-hash.txt b/ChangeLog.d/add-psa-example-program-hash.txt
new file mode 100644
index 0000000..ba4da20
--- /dev/null
+++ b/ChangeLog.d/add-psa-example-program-hash.txt
@@ -0,0 +1,2 @@
+Features
+   * Added an example program showing how to hash with the PSA API.