Added 4G memory for worker to prevent OOM errors when booting OSIE (t…

…inkerbell#188)

Intended to address tinkerbell#181 by simply upping the amount of memory on the worker.

deploy/vagrant/Vagrantfile

@@ -36,15 +36,15 @@ Vagrant.configure('2') do |config|
                       auto_config: false
 
     worker.vm.provider :libvirt do |lv|
-      lv.memory = 1*1024
+      lv.memory = 4*1024
       lv.cpus = 1
       lv.boot 'network'
       lv.mgmt_attach = false
     end
 
     worker.vm.provider :virtualbox do |vb, worker|
       worker.vm.box = 'generic/alpine38'
-      vb.memory = 1*1024
+      vb.memory = 4*1024
       vb.cpus = 1
       vb.gui = true
       vb.customize [