BaseTools: Fix the bug for .aml to use ASL binary type in Asbuilt inf

BaseTools: Fix the bug for .aml to use ASL binary type in Asbuilt inf

Per build spec, the .aml file should use ASL binary type in the Asbuilt
inf file. the original bug is .aml file may use BIN as binary type when
the module type is not BASE or USER_DEFINED. This patch 1) fix this bug.
2) fix some indent coding style issue.

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