perf: allow octavian on selected hardware

[avik-pal]

Based on quite a few issues like https://github.com/JuliaLinearAlgebra/Octavian.jl/issues/151 & https://github.com/JuliaLinearAlgebra/Octavian.jl/issues/24

Allowed Hardware

• [x] Intel
• [x] AMD Ryzen -- can confirm from the issue and also locally that Octavian is quite good.