1. Fixed the error that SkuName does not support dot character.
2. Fixed the error that SkuName does not support low case.
3. Fixed the error that there is no commet mark in AsBuild Inf file

Signed-off-by: Feng, Bob C bob.c.feng@intel.com
Reviewed-by: Liu, Yingke D <yingke.d.liu@intel.com> 
Reviewed-by: Hesheng Chen <hesheng.chen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2-buildtools/code/trunk/BaseTools@2614 c2973edb-eda0-4c78-bc6a-9341b269661f