Add ChangeLog entry

Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
diff --git a/ChangeLog.d/fix-iar-compiler-warnings.txt b/ChangeLog.d/fix-iar-compiler-warnings.txt
new file mode 100644
index 0000000..b0bd3e1
--- /dev/null
+++ b/ChangeLog.d/fix-iar-compiler-warnings.txt
@@ -0,0 +1,2 @@
+Bugfix
+   * Improve general IAR support
\ No newline at end of file