Shutdown issue resolved!!

[NilayGandhi29]

Issue #5

Changed the intelCore.h arguments to support the newer versions of the QEMU.

[nieklinnenbank]

Hi,

Thanks for solving! Indeed this works on newer Qemu versions.
Could you please update your pull request by:

• squashing the two commit into 1 commit (now it are two commits)
• provide a single line comment in the commit in the following format:
  path/to/the/file/or/module: single sentence describing what changed
  so for your change, it would be for example:
  lib/libarch/intel/IntelCore: update cpu_shutdown() to support newer Qemu versions
• please remove the '#include "Endian.h" line, it is not required for this change

Once updated, i will merge your pull request.
Thanks,
Niek