community/openrct2: add loongarch64 support
Build failed due to missing loongarch64 definitions.
/home/pero/aports/community/openrct2/src/OpenRCT2-0.4.17/src/openrct2-ui/../openrct2/Version.h:43:6: error: #error "OPENRCT2_ARCHITECTURE is undefined. Please add identification."
43 | #error "OPENRCT2_ARCHITECTURE is undefined. Please add identification."
| ^~~~~
ninja: subcommands failed
The upstream community has submitted the relevant MR, and the maintainer seems to have accepted it, but it has not been merged yet.