Factor out the common PDU header and data digest calculations into
helper functions in iscsi.c. This eliminates the need for the crc32c.c
iSCSI-specific padding functions spdk_fixup_crc32c() and spdk_crc32c(),
so remove them.
Change-Id: I8cbf269c43177d7483f1df2e7ce9ce83776e7169
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369312
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
