9f188ff790
Fixes the following build error:
```
CMake Error at CMakeLists.txt:9 (MESSAGE):
Unable to find zlib library.
CMake Error at CMakeLists.txt:13 (MESSAGE):
Unable to find OpenSSL librry.
```
Fixes: 24d6abe2d7cd8b ("firmware-utils: new package replacing otrx")
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>