ibm-oem: add FileAck handler for PELs

Extend the FileAck* commands to let the host firmware to ack PELs it has
received from the BMC.

Signed-off-by: vkaverap <vkaverap@in.ibm.com>
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: Iafc1c92c64c8ea7a51367c2c36842613af1f46b5
diff --git a/oem/ibm/libpldmresponder/file_io_type_pel.hpp b/oem/ibm/libpldmresponder/file_io_type_pel.hpp
index d2fb5cc..34f4907 100644
--- a/oem/ibm/libpldmresponder/file_io_type_pel.hpp
+++ b/oem/ibm/libpldmresponder/file_io_type_pel.hpp
@@ -29,6 +29,8 @@
                                uint64_t address);
     virtual int read(uint32_t offset, uint32_t& length, Response& response);
 
+    virtual int fileAck(uint8_t fileStatus);
+
     /** @brief method to store a pel file in tempfs and send
      *  d-bus notification to pel daemon that it is ready for consumption
      *