SPARC: fix DNRM2 returning INF instead of zero due to intermediate overflow

POWER: Fix complex dot function failures

POWER10: dgemv builtin rename

There are some test failures in complex dot functions when compiling with gcc12.
The machine constraints used now do not update all the four elements in the
expected result array. Fixing this with a reduced level of optimization.
This is not changing any performance numbers but will be converted to C code in future.

Add check to use correct builtin name for older versions
of gcc10 compilers.

1. Modify the algorithm to resolve multithreading failures
    2. No memory allocation in sbgemm kernel
    3. Optimize when alpha == 1.0f

implement ncopy tcopy kernel_8x4

POWER: fix issues with the small matrix kernel

Add ARM64 support for Windows

This patch fixes an issue when OpenBLAS is compiled for TARGET=POWER10
and the flag USE_THREAD is set to 0.

The function `num_cpu_avail` is only available when USE_THREAD=1,
so SMP is defined.

POWER10: Fix ZGEMM testcase failures

This patch fixes storing and restoring non volatile registers
in zgemm POWER10 kernel.

This patch makes use of compiler builtins and matches with assembly
performance. Tested with clang14 and gcc12.

This patch changes 32 bytes stores to two 16 bytes stores
to fix a recent degradation due to 32 bytes stores.

Fix compilation for CooperLake on Windows/clang

WIP casts and cleanups

SVE zgemm&cgemm (and other BLAS 3 complex)