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/libpldm/file_io.h b/oem/ibm/libpldm/file_io.h
index c4ab935..8d9a9a3 100644
--- a/oem/ibm/libpldm/file_io.h
+++ b/oem/ibm/libpldm/file_io.h
@@ -48,6 +48,8 @@
  */
 enum pldm_fileio_file_type {
 	PLDM_FILE_TYPE_PEL = 0,
+	PLDM_FILE_TYPE_LID_PERM = 1,
+	PLDM_FILE_TYPE_LID_TEMP = 2,
 };
 
 #define PLDM_RW_FILE_MEM_REQ_BYTES 20