module-rtkit: define RLIMIT_RTTIME in case it isn't defined.
musl libc doesn't define RLIMIT_RTTIME so lets define it in case it isn't defined.
one of the steps required for #48 (closed)
musl libc doesn't define RLIMIT_RTTIME so lets define it in case it isn't defined.
one of the steps required for #48 (closed)