[hec-assembler]: Refactoring no_hbm option for Configurable ISA_spec (#77)

Fixing no hbm for new isa_spec

Author: joserochh

assembler_tools/hec-assembler-tools/assembler/instructions/cinst/csyncm.py

@@ -13,6 +13,10 @@ class Instruction(CInstruction):
         https://github.com/IntelLabs/hec-assembler-tools/blob/master/docsrc/inst_spec/cinst/cinst_csyncm.md
     """
 
+    @classmethod
+    def get_throughput(cls) -> int:
+        return cls._OP_DEFAULT_THROUGHPUT
+    
     @classmethod
     def _get_OP_NAME_ASM(cls) -> str:
         """