* Add ARMV5

Add ARMv6 support to cmake/prebuild.cmake

Fix detection of Cray CCE after recent detection changes for gfortran on Cray

based on cpuid_arm.c and param.h

CCE15 no longer produces a .ident line, so  look for HPE name in a note section as well

Update Reference-LAPACK README to 3.11.0

Do not use multithreading for small SYMV/SYR2K workloads

Do not change the global OMP_NUM_THREADS

Re-enable overriding the LAPACK SYMV,SYR,SPMV and SPR implementations

Avoid unused variable warning in non-OpenMP builds

Improve inline documentation of ?GEJSV (Reference-LAPACK PR 750)

Rewrite ?LAQR5 and S/DHGEQZ , add tests for TRECV3 (Reference-LAPACK PR 682)

Wrap variables in cmake/prebuild in quotes to handle spaces in paths

Add clang option to avoid running out of registers in AVX512 assembly

* compare denominator against DBL_MIN rather than a somewhat arbitrary small number near it

Fix CMAKE-based cross-compilation to CortexA53 (wrong DGEMM setting)

Observe any stricter (OpenMP) thread count limit imposed by openblas_set_num_threads()

Fix OpenMP thread counting returning places rather than cores

Handle unrecognized ASM compiler (from Arm Compiler 22.1) in CMAKE builds

dot.c early bail fix

Avoid overflow from division in GETF2 potentially causing NaN

Add missing RISC-V architecture in arch.cmake

RISC-V support exists in Makefile.system but is missing in arch.cmake. This patch adds riscv64 platform support to cmake building system just like 039e27545f/Makefile.system (L830-L832) did.

Fix DYNAMIC_ARCH builds that select only a subset of precisions