drivers: net: fbnic: Return the true error in fbnic_alloc_napi_vectors.The error case in fbnic_alloc_napi_vectors defaulted to returningENOMEM. This can mask the true error case, causing confusion.Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>Link: https://patch.msgid.link/20251124200518.1848029-1-dimitri.daskalakis1@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>