x86_64: Updating makefile to avoid early fail of other projects build
x86_64: Updating makefile to avoid early fail of other projects build

x86_64 porting should be done later

Change-Id: I73b336b1c46cb2c95dfacfc33aec490be9e357a7
Signed-off-by: Pavel Chupin <0a60e45b66c2b4027d58f06ed039b3b27a2f3f3b@intel.com>

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst