This patch adds two internal functions for the channel create and destroy. Change-Id: I3c5ca7a0633e5a5b3f95a36ed03f2b4cb4792e4f Signed-off-by: GangCao <gang.cao@intel.com> Reviewed-on: https://review.gerrithub.io/395677 Tested-by: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>