polyml 5.5.1

Closes #22985.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ahcpd 0.53

Closes #22904.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ffmpeg 1.2.3
ffmpeg devel 2.0.1

This provides an option to use the latest stable version while we wait
for packages like gpac to become compatible.

Closes #21169.