This patch introduces the data structures and prototypes of functions
needed for computing SHA1 hash using multi-buffer.  Included are the
structures of the multi-buffer SHA1 job, job scheduler in C and x86
assembly.
Signed-off-by: NTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>