ethdev: better typing of RSS constants
ethdev: better typing of RSS constants

Forced type conversion is not needed to define a macro with
constant. The alternate is to let compiler use the default width,
or specify the width with suffix of 'U', 'UL', 'ULL', etc.

Signed-off-by: Helin Zhang <aba9dfdb1a6ec8bf1ff66b95272c029f8dfde1b1@intel.com>
Acked-by: Jijiang Liu <10b95deab7df654d0c21c8c98b54c9a1ecf2a5c0@intel.com>
Acked-by: Cunming Liang <7edc6dd0948177c688da9b288939d80da3db4303@intel.com>

phermansson/dpdk,phermansson/dpdk,phermansson/dpdk,phermansson/dpdk