kdump: don't set default values for KDUMP_CMDLINE and KDUMP_KIMAGE
Do not set default values of KDUMP_CMDLINE and KDUMP_KIMAGE, and leave
them set by configure file since they are different for different
architectures. Take KDUMP_KIMAGE kdump kernel image for example:
x86 is bzImage
mips64 is vmlinux
ppc is uImage
arm is zImage
Signed-off-by: Roy Li <rongqing.li@windriver.com> Signed-off-by: Kai Kang <kai.kang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
