new command: BmcBlobWriteMeta

Implement new command BmcBlobWriteMeta.

Change-Id: I2e148f4bde4ef5d24db7e30bb02bdde024d9166a
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/process.cpp b/process.cpp
index b3939eb..245da69 100644
--- a/process.cpp
+++ b/process.cpp
@@ -44,6 +44,7 @@
     {BlobOEMCommands::bmcBlobDelete, deleteBlob},
     {BlobOEMCommands::bmcBlobStat, statBlob},
     {BlobOEMCommands::bmcBlobSessionStat, sessionStatBlob},
+    {BlobOEMCommands::bmcBlobWriteMeta, writeMeta},
 };
 
 IpmiBlobHandler validateBlobCommand(CrcInterface* crc, const uint8_t* reqBuf,