BaseTools: Add more error message when PcdValue is wrong

For structure PCD, its field name is wrong and cause build failure. Its
build error message will output to let user aware what's wrong.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Feng Bob C <bob.c.feng@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/Python/Workspace/DscBuildData.py

@@ -1944,6 +1944,8 @@ class DscBuildData(PlatformBuildClassObject):
                         message_itmes = Message.split(":")
                         Index = 0
                         if "PcdValueInit.c" not in Message:
+                            if not MessageGroup:
+                                MessageGroup.append(Message)
                             break
                         else:
                             for item in message_itmes: