Adds profile small back to misra configs

This is directly reverting 0d1086110182433fb140bfea3e8687358feadddd

Change-Id: I1d66c99f4b5c840452974708b8176acbf9a1c328
Signed-off-by: Matthew Dalzell <matthew.dalzell@arm.com>
diff --git a/build_helper/build_helper_configs.py b/build_helper/build_helper_configs.py
index 8e332de..2e5898d 100755
--- a/build_helper/build_helper_configs.py
+++ b/build_helper/build_helper_configs.py
@@ -745,7 +745,7 @@
                 "test_psa_api":     ["OFF"],
                 "cmake_build_type": ["Debug"],
                 "with_bl2":         [True],
-                "profile":          ["profile_medium_arotless"],
+                "profile":          ["profile_small", "profile_medium_arotless"],
                 "extra_params":     ["PSOFF"]
                 },
                 "common_params": _common_tfm_builder_cfg,