kdump, x86: Process multiple Crash kernel in /proc/iomem

Vivek found specical handling crashkernel low in not good.
We should extend kexec-tools to handle multiple Crash kernel instead.

Extend crash_reserved_mem to array instead and use
kexec_iomem_for_each_line directly.  After that we can drop
crashkernel low.

-v2: fix left over calling of parse_iomem_single() found by Vivek.

Suggested-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Simon Horman <horms@verge.net.au>
3 files changed