LU-9907 build: add patchless server for lbuild

LU-9907 build: add patchless server for lbuild

Adding lbuild support for building patchless server
Cleanup unused TARGET_ARCHS and BUILD_ARCHS

Test-Parameters: trivial

Change-Id: I946352fa243c86d5729779406264e6ee37856145
Signed-off-by: Minh Diep <minh.diep@intel.com>
Reviewed-on: https://review.whamcloud.com/28672
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Jenkins
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>