[FdfSpecification Patch] FDF spec: Fix the issue in Rule section for RAW Type File

["Liming Gao" <liming.gao@intel.com>]

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1765

FV File Statement clarifies RAW File type with file name only.
But, FFS Rule section doesn't support this syntax. This is an issue
in FDF spec. Per PI spec, RAW File has no section. It directly includes
file data. So, FFS Rule section should support this usage.

Signed-off-by: Liming Gao <liming.gao@intel.com>
---
 3_edk_ii_fdf_file_format/39_[rule]_sections.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/3_edk_ii_fdf_file_format/39_[rule]_sections.md b/3_edk_ii_fdf_file_format/39_[rule]_sections.md
index 34e767f..d5ec895 100644
--- a/3_edk_ii_fdf_file_format/39_[rule]_sections.md
+++ b/3_edk_ii_fdf_file_format/39_[rule]_sections.md
@@ -125,7 +125,8 @@ Conditional statements may be used anywhere within this section.
 <FileOpts>          ::= ["Fixed" <MTS>] ["Checksum" <MTS>]
                         [<FfsAlignment>]
 <FfsAlignment>      ::= "Align" <Eq> <FfsAlignmentValues> <MTS>
-<FileSpec>          ::= {<SimpleFile>} {<ComplexFile>} {<SbtGuid>}
+<FileSpec>          ::= {<SimpleFile>} {<ComplexFile>} {<SbtGuid>} {<DataFile>}
+<DataFile>          ::= "{" <VarFile> "}"
 <SimpleFile>        ::= <LeafSecType> [<FileOpts>] <VarFile> <EOL>
 <LeafSecType>       ::= {"COMPAT16"} {"PE32"} {"PIC"} {"TE"}
                         {"FV_IMAGE"} {"RAW"} {"DXE_DEPEX"} {"UI"}
-- 
2.13.0.windows.1