[POWER] Problem with multi-threaded SBGEMM

Fix recursive variable expansion in Makefiles for LOONGSON3A

Tweak LAPACK STFSM test threshold a little more to cover POWER10 fma

Spell out function prototypes in the SYRK calls of potrf_parallel

Address clang array overflow warning in the SBGEMV microkernel for Cooper Lake

fix cmake typo for power10 cc version check

fixes 668f48f4fc

Merge release branch back into develop to copy tag

merge develop in preparation of the 0.3.28 release

Update Changelog.txt for 0.3.28

Disable forwarding from SBGEMM to SBGEMV for now

Fix invocation of GEMM3M tests in gmake builds

Make the dummy GEMM3M kernel for GENERIC targets forward to regular GEMM for now

Temporarily revert to the coarse-grained locking in the Windows thread server

Make the type used for the "hidden" string length argument configurable (adapted from Reference-LAPACK PR 1025)

Prevent compilers from using FMA that could increase error in ?GEEVX (Reference-LAPACK PR 1033)

Fix typos and sytrd boundary workspace (Reference-LAPACK PR 1030)

set MACOSX_RPATH to true on Apple

Add proper returns in x86_64 s/dscal kernels

use TARGET rather than CORE from Makefile.conf_last to fill in pkgconfig

fix invalid ifdef syntax in HUGETLB handling

Add CMAKE support for RISCV64 DYNAMIC_ARCH