Change isa riscv %dist to .el10rv
# CentOS Infra issue/request
## Issue Type
* [] Issue - problem with something that was working
* [x] Feature Request - something you'd like us to add/modify/change
* [] Task - mostly used by CentOS Infra team for day-to-day operations or bigger plans
## Description
The ISA SIG riscv %dist variable is currently .el10s We are finding that conflicts with several other SIG's.
Please change the ISA SIG riscv %dist variable to .el10rv
issue