change get_dcu_version code

nni/common/get_dcu_version.py

@@ -25,7 +25,8 @@ def abi_value():
 
 def dtk_version_value():
     try:
-       dtk_path=os.getenv('ROCM_PATH')
+       #dtk_path=os.getenv('ROCM_PATH')
+       dtk_path='/opt/dtk-24.04'
        dtk_version_path = os.path.join(dtk_path, '.info', "version-dev")
        with open(dtk_version_path, 'r',encoding='utf-8') as file:
            lines = file.readlines()
@@ -49,7 +50,7 @@ def dcu_version():
     try:
         release = os.environ.get('NNI_RELEASE')
         nni_version = release or UNKNOWN
-        dcu_version = nni_version + "das1.1" + nni_whl_name()
+        dcu_version = nni_version + "+" "das1.1" + nni_whl_name()
         return dcu_version
     except Exception:
         return UNKNOWN