Add Optimizations for LoongArch.

Signed-off-by: Hao Chen <chenhao@loongson.cn>

Signed-off-by: Hao Chen <chenhao@loongson.cn>

Signed-off-by: Hao Chen <chenhao@loongson.cn>

Signed-off-by: Hao Chen <chenhao@loongson.cn>

Signed-off-by: Hao Chen <chenhao@loongson.cn>

Add Apple M as NeoverseN1 in ARM64 DYNAMIC_ARCH runtime detection

Fix: build failed on LoongArch

Remove redundant targets from the default ARM64 DYNAMIC_ARCH list

Use functionally equivalent dynamic targets

According to the documentation at https://github.com/loongson/la-abi-specs/blob/release/lapcs.adoc#the-base-abi-variants, valid -mabi parameters are lp64s, lp64f, lp64d, ilp32s, ilp32f and ilp32d.

Reduce duplication in kernel definitions

Fix issues related to the ?GEDMD functions (Reference-LAPACK PR 959)

Handle corner cases of LWORK (Reference-LAPACK PR 942)

Similar to `drivers/other/dynamic.c`, I've looked for functionally
equivalent targets and mapped them in the default DYNAMIC_ARCH build.
Users can still build specific cores using DYNAMIC_LIST.

These files are exactly the same, so I believe we can reduce these files
down. Other files require a slightly more complex unpicking.

Add lower limit for multithreading in the reimplemented LAPACK ?GESV

Restore OpenBLAS-specific changes to the LAPACK test framework