graphics/openjpeg: Fix libopenjp2.pc
- Bump PORTREVISION for package change
PR: 291430
Reported by: lbartoletti
Obtained from: https://github.com/uclouvain/openjpeg/commit/5e258319332800f7a9937dc0b8b16b19a07dea8f
https://github.com/uclouvain/openjpeg/commit/7b508bb00f7fc5e7b61a6035fc4e2622d4ddff0d