BaseTools: fix format-security build warnings

BaseTools: fix format-security build warnings

Fix build warnings of "format not a string literal and no format
arguments [-Wformat-security]" for BaseTools, while using "gcc version
4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)".

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>