BaseTools: Remove the old python "not-equal"

Replace "<>" with "!=" to be compatible with python3.

Contributed-under: TianoCore Contribution Agreement 1.1
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/Python/Common/Misc.py

@@ -1293,7 +1293,7 @@ def ParseDevPathValue (Value):
 def ParseFieldValue (Value):
     if type(Value) == type(0):
         return Value, (Value.bit_length() + 7) / 8
-    if type(Value) <> type(''):
+    if type(Value) != type(''):
         raise BadExpression('Type %s is %s' %(Value, type(Value)))
     Value = Value.strip()
     if Value.startswith(TAB_UINT8) and Value.endswith(')'):