KWIML: Add LoongArch64 support

LoongArch is a new instruction set of Loongson 3A5000 CPU, currently in the development of the system, has completed the Loongarch 64bit version based on Debian 10.

We also started to submit patches to the community, such as binutils, autotools, meson etc.

More info about this patch:

$ uname -m
loongarch64
$ gcc -E -dM - < /dev/null|grep __loongarch64
#define __loongarch64 1
$ gcc -E -dM - < /dev/null|grep BYTE_ORDER
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__

Errors:

• commit ca7c9632 not allowed; the Utilities/KWIML/include/kwiml/abi.h file is maintained by the third party utilities; please use Utilities/Scripts/update-kwiml.bash to update this file.

Please rewrite commits to fix the errors listed above (adding fixup commits will not resolve the errors) and force-push the branch again to update the merge request.

Create new MR for kwiml: utils/kwiml!4 (merged)

Thanks. !6032 (merged) updates CMake's version of KWIML to include that.

closed