sysutils/edk2: set IO port range properly for bhyve

Bhyve uses an io port range of [ 0x2000, 0x10000 ] [1]. At the moment,
EDKII is using a subset of this range [ 0xC000, 0x10000 ] [2]. Even
though the EDKII range doesn't exceed the bhyve range, it's causing
issues on some guests like OpenBSD. We don't know why it's causing
issues yet. However, using the same IO port range in EDKII fixes the
issue.

[1] 82ea0132c8/usr.sbin/bhyve/pci_emul.c (L133-L134)
[2] fb044b7fe8/OvmfPkg/Bhyve/PlatformPei/Platform.c (L156-L157)

PR:			274389
Reviewed by:		manu, markj
Approved by:		manu
Sponsored by:		Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D42627

(cherry picked from commit 231c5bc3a4)

sysutils/edk2/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	edk2
 PORTVERSION=	g202308
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	sysutils
 
 PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/

sysutils/edk2/files/patch-OvmfPkg_Bhyve_PlatformPei_Platform.c

@@ -0,0 +1,13 @@
+--- OvmfPkg/Bhyve/PlatformPei/Platform.c.orig	2023-11-17 12:26:16 UTC
++++ OvmfPkg/Bhyve/PlatformPei/Platform.c
+@@ -153,8 +153,8 @@ MemMapInitialization (
+   UINT64         PciIoSize;
+   RETURN_STATUS  PcdStatus;
+ 
+-  PciIoBase = 0xC000;
+-  PciIoSize = 0x4000;
++  PciIoBase = 0x2000;
++  PciIoSize = 0xE000;
+ 
+   //
+   // Create Memory Type Information HOB