init: factorize grub1 and grub2 code. Allow cloud-init to work in kexec mode
init: factorize grub1 and grub2 code. Allow cloud-init to work in kexec mode

lebauce/edeploy,enovance/edeploy,lebauce/edeploy,redhat-cip/edeploy,enovance/edeploy,redhat-cip/edeploy,redhat-cip/edeploy,enovance/edeploy,redhat-cip/edeploy,lebauce/edeploy,enovance/edeploy,lebauce/edeploy