oem-ibm: add readFileByTypeIntoMemory handler

Add a handler for file type 'LID', which are host firmware image files
on IBM systems. These would be read by the host firmware as it boots.

Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: I83e3ee398a4c6a4198a40b8b2188a3c11d0e55c4
diff --git a/oem/ibm/libpldmresponder/file_io_type_pel.hpp b/oem/ibm/libpldmresponder/file_io_type_pel.hpp
index 92bcbf6..4c79452 100644
--- a/oem/ibm/libpldmresponder/file_io_type_pel.hpp
+++ b/oem/ibm/libpldmresponder/file_io_type_pel.hpp
@@ -25,6 +25,8 @@
 
     virtual int writeFromMemory(uint32_t offset, uint32_t length,
                                 uint64_t address);
+    virtual int readIntoMemory(uint32_t offset, uint32_t length,
+                               uint64_t address);
 
     /** @brief method to store a pel file in tempfs and send
      *  d-bus notification to pel daemon that it is ready for consumption