BaseTools: Replace EDK Component strings with predefined constant

BaseTools: Replace EDK Component strings with predefined constant

EDK_COMPONENT_TYPE_LIBRARY was 'LIBRARY'
EDK_COMPONENT_TYPE_SECURITY_CORE was 'SECURITY_CORE'
EDK_COMPONENT_TYPE_COMBINED_PEIM_DRIVER was 'COMBINED_PEIM_DRIVER'
EDK_COMPONENT_TYPE_PIC_PEIM was 'PIC_PEIM'
EDK_COMPONENT_TYPE_RELOCATABLE_PEIM was 'RELOCATABLE_PEIM'
EDK_COMPONENT_TYPE_BS_DRIVER was 'BS_DRIVER'
EDK_COMPONENT_TYPE_RT_DRIVER was 'RT_DRIVER'
EDK_COMPONENT_TYPE_SAL_RT_DRIVER was 'SAL_RT_DRIVER'
EDK_COMPONENT_TYPE_APPLICATION was 'APPLICATION'

v2 - revert 2 files.  will update later in own patches.
v3 - fix v2

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>