Add more SEL commands

Added more sel commands like clear sel, get sel time etc.

Tested: Verified this sending command through ipmitool.

Change-Id: If1478589ed8dcb2976772c05f748a358c9ee8a7b
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
diff --git a/include/storagecommands.hpp b/include/storagecommands.hpp
index 4980433..5307c2d 100644
--- a/include/storagecommands.hpp
+++ b/include/storagecommands.hpp
@@ -143,4 +143,8 @@
     uint8_t recordData[16]; //!< Record Data.
 } __attribute__((packed));
 
+static constexpr auto initiateErase = 0xAA;
+static constexpr auto getEraseStatus = 0x00;
+static constexpr auto eraseComplete = 0x01;
+
 } // namespace fb_oem::ipmi::sel