buildroot

kexec: bump to 2.0.14

Patch 0002-arm-add-phys_to_virt.h-and-iomem.patch is now obsolete as
it's been properly fixed upstream now.

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>