Xen: Support adding DT nodes

Support adding xen,xen-bootargs node via --with-xen-bootargs to the
configure script and automatically add the Dom0 node to the DT as well.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
[Mark: rebuild DT when kernel size changes]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
2 files changed