mfd: intel-m10-bmc: Add N5010 variant

The m10-bmc is used on the Silicom N5010 PAC too, so add it to list of
m10bmc types.

Signed-off-by: Martin Hundebøll <mhu@silicom.dk>
Acked-by: Moritz Fischer <mdf@kernel.org>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>