Adjust .clang-tidy for public struct member names

.clang-tidy

@@ -16,7 +16,9 @@ CheckOptions:
       value: g_
     - key: readability-identifier-naming.VariableCase
       value: camelBack
-    - key: readability-identifier-naming.MemberPrefix
+    - key: readability-identifier-naming.PrivateMemberPrefix
+      value: m_
+    - key: readability-identifier-naming.ProtectedMemberPrefix
       value: m_
     - key: readability-identifier-naming.MemberCase
       value: camelBack