align volatile swap partition to 1Mb instead of 512b

dracut/simple/init.sh

@@ -53,7 +53,7 @@ if [ `cat /sys/class/block/$ROOT_DEV/ro` = 1 ] ; then
         die "volatile.img smaller than 1GB, cannot continue"
     fi
     /sbin/sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-1,$SWAP_SIZE,S
+2048,$SWAP_SIZE,S
 ,,L
 EOF
     if [ $? -ne 0 ]; then
@@ -72,7 +72,7 @@ else
     echo "Qubes: Doing R/W setup for TemplateVM..."
     while ! [ -e /dev/xvdc ]; do sleep 0.1; done
     /sbin/sfdisk -q --unit S /dev/xvdc >/dev/null <<EOF
-1,$SWAP_SIZE,S
+2048,$SWAP_SIZE,S
 EOF
     if [ $? -ne 0 ]; then
         die "Qubes: failed to setup partitions on volatile device"