#21 Fixes needed to silence VS2015 compilation warnings

[Pete Batard]

Currently, Visual Studio 2015 generates a lot of warnings when compiling gnu-efi, such as:

gnu-efi\inc\efipciio.h(7): warning C4091: 'typedef ': ignored on left of '_EFI_PCI_IO' when no variable is declared

To address this, gnu-efi should define the INTERFACE_DECL() for MS compilers as it does for GNU.

Patch attached.

[Nigel Croxon]

commit 0b5f181a36c20ea8dd79111c8d078da98903fb5e
Author: Nigel Croxon nigel.croxon@hpe.com
Date: Thu Sep 17 08:22:39 2015 -0400

From: Pete Batard <pete@akeo.ie>
Date: Wed, 16 Sep 2015 18:26:28 +0100
Subject: [PATCH] Fix VS2015 warnings


* Currently, Visual Studio 2015 generates a lot of warnings such as:
  gnu-efi\inc\efipciio.h(7): warning C4091: 'typedef ': ignored on left of '_EFI_PCI_IO' when no variable is declared
* To address this, gnu-efi should define the INTERFACE_DECL() for MS compilers as it does for GNU

Signed-off-by: Pete Batard <pete@akeo.ie>
Signed-off-by: Nigel Croxon <nigel.croxon@hpe.com>