kexec: i386: Add cmdline_add_memmap_internal() to reduce the code duplication

Functions:
- cmdline_add_memmap()
- cmdline_add_memmap_acpi()
- cmdline_add_memmap_reserved()
is kind of similar, So add a new function cmdline_add_memmap_internal() to
hold the common codes, reducing the duplication.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
1 file changed