LU-10932 libcfs: properly handle failure cases in SMP code

LU-10932 libcfs: properly handle failure cases in SMP code

While pushing the LU-8703 and LU-7734 work upstream some bugs were
pointed out by Dan Carpenter in the code. Due to single err label
in cfs_cpt_table_alloc() and cfs_cpu_init() a few items were being
cleaned up that were never initialized. This can lead to crashed
and other problems. In those initialization function introduce
individual labels to jump to only the thing initialized get freed
on failure. Lastly in cfs_cpt_table_alloc() handle the failure
case instead of the passed case which is the perferred style.

Change-Id: I969f4e327888042a517bc321b68d55fc691b074e
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/32085
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>