MdePkg/Include: Add management mode FV file type and depex.

MdePkg/Include: Add management mode FV file type and depex.

As per PI specification v1.6,
As per section 2.1.4.1,
The following file types exist:
Table 3. Defined File Types
Name                                   Value
EFI_FV_FILETYPE_RAW                    0x01
EFI_FV_FILETYPE_FREEFORM               0x02
EFI_FV_FILETYPE_SECURITY_CORE          0x03
EFI_FV_FILETYPE_PEI_CORE               0x04
EFI_FV_FILETYPE_DXE_CORE               0x05
EFI_FV_FILETYPE_PEIM                   0x06
EFI_FV_FILETYPE_DRIVER                 0x07
EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER   0x08
EFI_FV_FILETYPE_APPLICATION            0x09
EFI_FV_FILETYPE_MM                     0x0A
EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE  0x0B
EFI_FV_FILETYPE_COMBINED_MM_DXE        0x0C
EFI_FV_FILETYPE_MM_CORE                0x0D
EFI_FV_FILETYPE_MM_STANDALONE          0x0E
EFI_FV_FILETYPE_MM_CORE_STANDALONE     0x0F

The following new section type is added:
EFI_SECTION_MM_DEPEX

This patch adds the management mode FV file type and depex.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>