1)update function header coding style issue

change Some unexpected error happened.    to Other errors as indicated.
2) delete unused parameter in IScsiConfigFormInit()
3) correct IN OUT mistake in IScsiSessionInit ()
4)roll back one update for Piece of code in IScsiDhcp.c around line 99 on FieldIndex 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7013 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/IScsiDxe/IScsiIbft.h

@@ -31,7 +31,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 **/
 VOID
 IScsiPublishIbft (
-  VOID
+  VOID  
   );
 
 #endif