Update the registered IPMI method name

Update registered IPMI method names to use `Lower Camel Case`.

Change-Id: I05bce3cbc6969872d239e2f304eaa9fa81215502
Signed-off-by: George Liu <liuxiwei@ieisystem.com>
diff --git a/strgfnhandler.cpp b/strgfnhandler.cpp
index f480c8a..748c1a3 100644
--- a/strgfnhandler.cpp
+++ b/strgfnhandler.cpp
@@ -10,7 +10,7 @@
 #include <cstdio>
 #include <cstring>
 
-void register_netfn_storage_write_fru() __attribute__((constructor));
+void registerNetFnStorageWriteFru() __attribute__((constructor));
 
 sd_bus* ipmid_get_sd_bus_connection(void);
 
@@ -107,7 +107,7 @@
 //-------------------------------------------------------
 // Registering WRITE FRU DATA command handler with daemon
 //-------------------------------------------------------
-void register_netfn_storage_write_fru()
+void registerNetFnStorageWriteFru()
 {
     lg2::info(
         "Registering WRITE FRU DATA command handler, netfn:{NETFN}, cmd:{CMD}",