[nnc] Lower scalar constants as doubles/longs (#54824)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/54824
Test Plan: Imported from OSS
Reviewed By: asuhan
Differential Revision: D27383224
Pulled By: bertmaher
fbshipit-source-id: 84b43ba6c22c1338c68c40a11ca647c3717f2abc
