uefi: Include BaseType.h in SimpleNetwork.h instead of doing it transitively.

Change-Id: I93914d4b3849b0ec6b5442e9bd152383a70c8df8
diff --git a/src/uefi/edk/Protocol/SimpleNetwork.h b/src/uefi/edk/Protocol/SimpleNetwork.h
index 0dda83a..74c0d8e 100644
--- a/src/uefi/edk/Protocol/SimpleNetwork.h
+++ b/src/uefi/edk/Protocol/SimpleNetwork.h
@@ -26,6 +26,8 @@
 #ifndef __SIMPLE_NETWORK_H__
 #define __SIMPLE_NETWORK_H__
 
+#include <uefi/edk/Uefi/UefiBaseType.h>
+
 #define EFI_SIMPLE_NETWORK_PROTOCOL_GUID \
   { \
     0xA19832B9, 0xAC25, 0x11D3, {0x9A, 0x2D, 0x00, 0x90, 0x27, 0x3F, 0xC1, 0x4D } \