crypto: qat - fix object goals in Makefiles

Align with kbuild documentation by using <module_name>-y instead of
<module_name>-objs, following the kernel convention for building modules
from multiple object files.

Link: https://docs.kernel.org/kbuild/makefiles.html#loadable-module-goals-obj-m


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