graphics/libjxl: expose LCMS2 support (disabled by default)

lcms2 and skcms interpret color profiles differently. Upstream
default seems to be optimized for rendering in Chromium and Firefox.

https://github.com/libjxl/libjxl/blob/v0.11.0/doc/color_management.md#cms-library
https://github.com/libjxl/libjxl/issues/1579#issuecomment-1180561564