Clear up network stack to use R9 MdeLib:

1.Use driver model APIs in UefiLib
2.Register Unload Image in INF/MSA to be included in autogen code.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3962 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Driver.c

@@ -176,7 +176,7 @@ Returns:
   //
   // Install the TCP4 Driver Binding Protocol
   //
-  Status = NetLibInstallAllDriverProtocols (
+  Status = EfiLibInstallAllDriverProtocols (
              ImageHandle,
              SystemTable,
              &mTcp4DriverBinding,
@@ -185,7 +185,7 @@ Returns:
              NULL,
              NULL
              );
-
+  ASSERT_EFI_ERROR (Status);
   //
   // Initialize ISS and random port.
   //

MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.inf

@@ -25,7 +25,7 @@
   EFI_SPECIFICATION_VERSION      = 0x00020000
 
   ENTRY_POINT                    = Tcp4DriverEntryPoint
-
+  UNLOAD_IMAGE                   = NetLibDefaultUnload
 #
 # The following information is for reference only and not required by the build tools.
 #

MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Dxe.msa

@@ -85,6 +85,7 @@
     <Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
     <Extern>
       <ModuleEntryPoint>Tcp4DriverEntryPoint</ModuleEntryPoint>
+      <ModuleUnloadImage>NetLibDefaultUnload</ModuleUnloadImage>
     </Extern>
   </Externs>
 </ModuleSurfaceArea>