[Patch] BaseTools/BinToPcd: Encode string returned from ByteArray()

["Kinney, Michael D" <michael.d.kinney@intel.com>]

https://bugzilla.tianocore.org/show_bug.cgi?id=1069

The ByteArray() method returns a string with the hex bytes of
a PCD value.  Make sure the string is always encoded as a string,
so it can be used to build a complete PCD statement string and be
written out to a file.  This change is required for Python 3.x
compatibility.

Cc: YanYan Sun <yanyan.sun@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
---
 BaseTools/Scripts/BinToPcd.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/BaseTools/Scripts/BinToPcd.py b/BaseTools/Scripts/BinToPcd.py
index 25b74f6004..1495a36933 100644
--- a/BaseTools/Scripts/BinToPcd.py
+++ b/BaseTools/Scripts/BinToPcd.py
@@ -70,7 +70,8 @@ if __name__ == '__main__':
         #
         # Return a PCD value of the form '{0x01, 0x02, ...}' along with the PCD length in bytes
         #
-        return '{' + (', '.join (['0x{Byte:02X}'.format (Byte = Item) for Item in Buffer])) + '}', len (Buffer)
+        PcdValue = '{' + ', '.join (['0x{Byte:02X}'.format (Byte = Item) for Item in Buffer]) + '}'
+        return PcdValue.encode (), len (Buffer)
 
     #
     # Create command line argument parser object
-- 
2.14.2.windows.3