add changelog

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/ChangeLog.d/8461.txt b/ChangeLog.d/8461.txt
new file mode 100644
index 0000000..459e47b
--- /dev/null
+++ b/ChangeLog.d/8461.txt
@@ -0,0 +1,4 @@
+Bugfix
+   * Fix unsupported PSA asymmetric encryption and dectryption
+     (psa_asymmetric_[en|de]crypt) with opaque keys.
+     Resolves #8461.