target_link_libraries not suport SUFFIX64

[Smilyf]

Thank you for your work on this project.

I’ve encountered an issue where the CMake integration is inconsistent when OpenBLAS is compiled with the SUFFIX64=64 option. The generated config file does not apply the suffix to CMake targets and variables, which can cause conflicts.

Problem:
When building with SUFFIX64=64, the OpenBLASConfig.cmake file still exports a target named OpenBLAS::OpenBLAS and variables like OpenBLAS_LIBRARIES. This is inconsistent with the library filename and can be problematic if a project needs to link against both 32-bit and 64-bit interfaces simultaneously.

Thank you for your time and consideration.