Add aligned_alloc instead of memalign.

[Wolf3s]

Pull Request checklist

Note: these are not necessarily requirements

• I reformatted the code with clang-format
• I checked to make sure my submission worked
• I am the author of submission or have permission from the original author
• Requires update of the PS2SDK or other dependencies
• Others (please specify below)

Pull Request description

aligned_alloc is a c11 function that checks the allignment of the power of two, This was inspired by @israpps suggestion about iop alloc