Reword move_internal_headers changelog entry
Reword the changelog entry to tailor it for users of the library as
opposed to developers of the library.
API changes
* Move internal headers.
- All internal headers have been moved to library/ to unify them in one
- location that is separate from the public API. This includes some files
- that were previously not explicitly internal such as: `bn_mul.h`,
- `aesni.h`, `padlock.h` and `entropy_poll.h`.
+ Header files that were only meant for the library's internal use and
+ were not meant to be used in application code have been moved out of
+ the include/ directory. The headers concerned are bn_mul.h, aesni.h,
+ padlock.h, entropy_poll.h and *_internal.h.
