OSX-KVM - March 2021 - Batch Update 1

Changes:

- Upgrade to OpenCore 0.6.7-RELEASE

- Big Sur image building script updates (Nick)
  - See https://github.com/kholia/OSX-KVM/pull/169 for details.

- Removed history to reduce repository size

scripts/lsgroup.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# mafferri (https://bbs.archlinux.org)
+
+BASE="/sys/kernel/iommu_groups"
+
+for i in $(find $BASE -maxdepth 1 -mindepth 1 -type d); do
+	GROUP=$(basename $i)
+	echo "### Group $GROUP ###"
+	for j in $(find $i/devices -type l); do
+		DEV=$(basename $j)
+		echo -n "    "
+		lspci -s $DEV
+	done
+done