storagehandler: move get & reserve SEL to new API

Rewrite "Get sel info & Reserve SEL" commands to use the new API.

Tested:
1. verified ipmitool sel info is same both before and
after the changes
Command: ipmitool sel info
Output:
SEL Information
Version          : 1.5 (v1.5, v2 compliant)
Entries          : 0
Free Space       : 65535 bytes or more
Percent Used     : unknown
Last Add Time    : Not Available
Last Del Time    : Not Available
Overflow         : false
Supported Cmds   : 'Delete' 'Reserve'

Command: ipmitool raw 0x0a 0x40
Output:  51 00 00 ff ff ff ff ff ff ff ff ff ff 0a

2. verfied the Reserve SEL command
ipmitool  raw  0x0a 0x42
 01 00
ipmitool  raw  0x0a 0x42
 02 00

Change-Id: I37d602293066274a3fc417ad7e59cea3c73315f7
Signed-off-by: jayaprakash Mutyala <mutyalax.jayaprakash@intel.com>
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
Signed-off-by: jayaprakash Mutyala <mutyalax.jayaprakash@intel.com>
diff --git a/selutility.hpp b/selutility.hpp
index bf16a5c..49ec1b7 100644
--- a/selutility.hpp
+++ b/selutility.hpp
@@ -33,27 +33,21 @@
 
 static constexpr auto selVersion = 0x51;
 static constexpr auto invalidTimeStamp = 0xFFFFFFFF;
-static constexpr auto operationSupport = 0x0A;
-
-/** @struct GetSELInfoResponse
- *
- *  IPMI payload for Get SEL Info command response.
- */
-struct GetSELInfoResponse
-{
-    uint8_t selVersion;       //!< SEL revision.
-    uint16_t entries;         //!< Number of log entries in SEL.
-    uint16_t freeSpace;       //!< Free Space in bytes.
-    uint32_t addTimeStamp;    //!< Most recent addition timestamp.
-    uint32_t eraseTimeStamp;  //!< Most recent erase timestamp.
-    uint8_t operationSupport; //!< Operation support.
-} __attribute__((packed));
 
 static constexpr auto firstEntry = 0x0000;
 static constexpr auto lastEntry = 0xFFFF;
 static constexpr auto entireRecord = 0xFF;
 static constexpr auto selRecordSize = 16;
 
+namespace operationSupport
+{
+static constexpr bool overflow = false;
+static constexpr bool deleteSel = true;
+static constexpr bool partialAddSelEntry = false;
+static constexpr bool reserveSel = true;
+static constexpr bool getSelAllocationInfo = false;
+} // namespace operationSupport
+
 /** @struct GetSELEntryRequest
  *
  *  IPMI payload for Get SEL Entry command request.