Change ToolChainFamily = 'MSFT' to ToolChainFamily = '' to resolve build the reference code using GCC toolchain on the EDK2 tree error

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


git-svn-id: https://svn.code.sf.net/p/edk2-buildtools/code/trunk/BaseTools@2615 c2973edb-eda0-4c78-bc6a-9341b269661f
Change *_GCC44_*_APP_FLAGS to resolve  building a EDKI module file with a dxs file specified using GCC4 fail issue

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


git-svn-id: https://svn.code.sf.net/p/edk2-buildtools/code/trunk/BaseTools@2616 c2973edb-eda0-4c78-bc6a-9341b269661f
update EFI_SIGNATURE_x to SIGNATURE_x which is more common version to keep in step with other pkg

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


git-svn-id: https://svn.code.sf.net/p/edk2-buildtools/code/trunk/BaseTools@2617 c2973edb-eda0-4c78-bc6a-9341b269661f