BaseTools:Coding problems caused by special characters

BZ:https://bugzilla.tianocore.org/show_bug.cgi?id=1670

During BaseTools compiling under Chinese or Japanese
language Windows, python exception occurring.
UnicodeDecodeError: 'ascii' codec can't decode byte 0xbd
in position 3528: ordinal not in range(128)

Cc: Bob Feng <bob.c.feng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>

BaseTools/Source/Python/Common/Misc.py

@@ -1032,7 +1032,7 @@ def ParseFieldValue (Value):
             p.stderr.close()
         if err:
             raise BadExpression("DevicePath: %s" % str(err))
-        out = out.decode()
+        out = out.decode(encoding='utf-8', errors='ignore')
         Size = len(out.split())
         out = ','.join(out.split())
         return '{' + out + '}', Size