iwlwifi: add DELL SKU for 5150 HMC

commit a1923f1d upstream.

This SKU was missing in the list of supported devices

https://bugzilla.kernel.org/show_bug.cgi?id=60577



Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>