soc/intel/common: Generate the CSE RW metadata and add to FW_MAIN_A/B

In the existing implementation CSE RW metadata file is generated by
scripts and to avoid incompitable issues between coreboot and the
scripts this patch adds the follwing changes,
* Move the metadata generation to the coreboot Makefile.
* Add CBFS component type struct to create a metadata file during
  the compile time.
* Extract the CSE RW version from SOC_INTEL_CSE_RW_VERSION config
  and update the major, minor, hotfix and build versions using the
  compile time flags.
* Compute the hash of CSE RW binary in hex format using the openssl
  and use the HASH_BYTEARRAY macro to convert the 64 character hex
  values into the array.
* Add the me_rw.metadata cbfs file to FW_MAIN_A and FW_MAIN_B
  regions.

BUG=b:169077783
TEST= Built for dedede. Verify that metadata file was generated
and added to the FW_MAIN_A/B. Extracted it using cbfstool and
verfied that metadata was generated properly.

Change-Id: I412581400a9606fa17cf4398faffda923f07b320
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47431
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/cse/Kconfig b/src/soc/intel/common/block/cse/Kconfig
index a2c8928cf0..b427b15b70 100644
--- a/src/soc/intel/common/block/cse/Kconfig
+++ b/src/soc/intel/common/block/cse/Kconfig
@@ -41,6 +41,12 @@ config SOC_INTEL_CSE_RW_CBFS_NAME
 	help
 	 CBFS entry name for Intel CSE CBFS RW blob
 
+config SOC_INTEL_CSE_RW_METADATA_CBFS_NAME
+	string "CBFS name for CSE RW metadata file"
+	default "me_rw.metadata"
+	help
+	 CBFS name for Intel CSE CBFS RW metadata file
+
 config SOC_INTEL_CSE_RW_FILE
 	string "Intel CSE CBFS RW path and filename"
 	default ""