[NPU] NPU quantization refactoring & more quantization formats support (#14504)

Co-authored-by: TamirBaydasov <mr.jeijy@gmail.com>
Co-authored-by: Tamir Baydasov <41994229+TamirBaydasov@users.noreply.github.com>
Co-authored-by: Савкин Артем <savkinartem@MacBook-Air-Viktoria.local>
Co-authored-by: Edward Shogulin <edward.shogulin@gmail.com>

test/srt/ascend/test_ascend_mla_w8a8int8.py

@@ -36,8 +36,6 @@ class TestAscendMlaW8A8Int8(CustomTestCase):
             0.8,
             "--attention-backend",
             "ascend",
-            "--quantization",
-            "modelslim",
             "--tp-size",
             4,
             "--disable-radix-cache",