linux-phytec-fsl

hwrng: via-rng - Mark device ID table as __maybe_unused

It is only used in modular builds.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>