Fix some old names that remained

- most in doxygen doc that was never renamed
- some re-introduced in comments/doc/strings by me
diff --git a/configs/config-suite-b.h b/configs/config-suite-b.h
index 78b89e5..438d179 100644
--- a/configs/config-suite-b.h
+++ b/configs/config-suite-b.h
@@ -71,7 +71,7 @@
 
 /*
  * You should adjust this to the exact number of sources you're using: default
- * is the "platform_entropy_poll" source, but you may want to add other ones.
+ * is the "mbedtls_platform_entropy_poll" source, but you may want to add other ones.
  * Minimum is 2 for the entropy test suite.
  */
 #define MBEDTLS_ENTROPY_MAX_SOURCES 2