crypto: ccree - use a proper le32 type for le32 val

We build an explicit little endian value from the IDR register
values. Use a proper le32 type to mark the var as such to
satisfy Sparse.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Reported-by: kbuild test robot <lkp@intel.com>
Fixes: dcf6285d

 ("crypto: ccree - add CID and PID support")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>