Ignore tinycrypt headers from doxygen input
diff --git a/doxygen/mbedtls.doxyfile b/doxygen/mbedtls.doxyfile
index 574db8d..e30b184 100644
--- a/doxygen/mbedtls.doxyfile
+++ b/doxygen/mbedtls.doxyfile
@@ -696,7 +696,9 @@
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                =
+EXCLUDE                = ./../include/tinycrypt/ecc.h \
+                         ./../include/tinycrypt/ecc_dh.h \
+                         ./../include/tinycrypt/ecc_dsa.h
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded