LU-5743 build: Update to zfs/spl 0.6.3-1.1

LU-5743 build: Update to zfs/spl 0.6.3-1.1

Update ZFS and SPL version to the latest released patch version of
0.6.3-1.1

Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: I19ec6da5c431b41e741b469e43f5373502d43130
Reviewed-on: http://review.whamcloud.com/12273
Tested-by: Maloo <hpdd-maloo@intel.com>
Tested-by: Jenkins
Reviewed-by: Minh Diep <minh.diep@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>