RHEL: improve the limits
Improve the limits according to the official documentation:
https://access.redhat.com/articles/rhel-limits
- on RHEL 3, 4, 5, and 6: specify only i686 & x86_64
- on RHEL 7, and 8: almost all the supported architectures
Improve the limits according to the official documentation:
https://access.redhat.com/articles/rhel-limits