Log Message:
Enable dvdnav and dvdread, add ICC profile support in mpv

This change:
- properly enables dvdnav and dvdread support by passing
  --enable-dvd{nav,read} via WAF_CONFIGURE_ARGS; they had both remained
  disabled so far in spite of the inclusion of their buildlink3.mk files.
- adds a dependency on lcms2 to allow loading ICC profiles;
- bumps PKGREVISION.

LGTM leot@