Ported the patch from EDKII repository and added following up changes
<Original commit info in EDKII>
commit 7b500c606ad101fad52327318af37889048cd45e
Author: Liming Gao <liming.gao@intel.com>
Date: Tue Oct 16 23:08:46 2018 +0800
BaseTools: Remove the step to freeze python tool
https://bugzilla.tianocore.org/show_bug.cgi?id=1257
Binary python tool is not supported anymore. So, the freeze python tool
step is not required.
Signed-off-by: Aiden Park <aiden.park@intel.com>
397f25b853