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/IScsiDriver.c

@@ -337,7 +337,7 @@ IScsiDriverBindingStop (
   @param[in]  ImageHandle       Handle that identifies the image to be unloaded.
 
   @retval EFI_SUCCESS           The image has been unloaded.
-  @retval Others                Some unexpected errors happened.
+  @retval Others                Other errors as indicated.
 **/
 EFI_STATUS
 EFIAPI
@@ -408,7 +408,7 @@ EfiIScsiUnload (
 
   @retval EFI_SUCCESS           The operation completed successfully.
   @retval EFI_ACCESS_DENIED     EFI_ISCSI_INITIATOR_NAME_PROTOCOL was installed unexpectedly.
-  @retval Others                Some unexpected error happened.
+  @retval Others                Other errors as indicated.
 **/
 EFI_STATUS
 EFIAPI
@@ -472,7 +472,7 @@ IScsiDriverEntryPoint (
     //
     // Initialize the configuration form of iSCSI.
     //
-    Status = IScsiConfigFormInit (gIScsiDriverBinding.DriverBindingHandle);
+    Status = IScsiConfigFormInit ();
     if (EFI_ERROR (Status)) {
       gBS->UninstallMultipleProtocolInterfaces (
             ImageHandle,