crypto: qat - move returns to default case

Make use of the default statements by changing the pattern:
switch(condition) {
case COND_A:
...
break;
case COND_b:
...
break;
}
return ret;

in

switch(condition) {
case COND_A:
...
break;
case COND_b:
...
break;
default:
return ret;
}

Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto: qat - Move driver to drivers/crypto/intel/qat

With the growing number of Intel crypto drivers, it makes sense to
group them all into a single drivers/crypto/intel/ directory.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>