Fixes issue where LUKS encrypted XFS root will not boot

Issue is fixed by adding "xfs" to the "MODULES" list in
/etc/mkinitcpio.conf

See the following link for XFS and LUKS:
https://bbs.archlinux.org/viewtopic.php?pid=1748083#p1748083s://bbs.archlinux.org/viewtopic.php?pid=1748083#p1748083

Author: UNIcodeX

lib/configure_device.sh

@@ -854,6 +854,8 @@ fs_select() {
 		enable_f2fs=true
 	elif [ "$FS" == "btrfs" ]; then
 		enable_btrfs=true
+  elif [ "$FS" == "xfs" ]; then
+		enable_xfs=true
 	fi
 
 }

lib/configure_system.sh

@@ -71,6 +71,15 @@ configure_system() {
 		echo "$(date -u "+%F %H:%M") : Configure system for f2fs" >> "$log"
 	fi
 
+  if "$enable_xfs" ; then
+		sed -i '/MODULES=/ s/.$/ xfs )/;s/" /"/' "$ARCH"/etc/mkinitcpio.conf
+		if ! "$crypted" ; then
+			arch-chroot "$ARCH" mkinitcpio -p "$kernel" &>/dev/null &
+			pid=$! pri=1 msg="\n$xfs_config_load \n\n \Z1> \Z2mkinitcpio -p $kernel\Zn" load
+		fi
+		echo "$(date -u "+%F %H:%M") : Configure system for xfs" >> "$log"
+	fi
+
 	if (<<<"$BOOT" egrep "nvme.*" &> /dev/null) then
 		sed -i 's/MODULES="/MODULES="nvme /;s/ "/"/' "$ARCH"/etc/mkinitcpio.conf
 		if ! "$crypted" ; then