[PT-D][Sharding] Fix view op and matrix ops unit test
To fix a corner case when the sharding dim is negative number we need to handle it correctly.
Also disable RPC for matrix ops which are not necessary and they fail on AWS pytest.
Differential Revision: [D36464797](https://our.internmc.facebook.com/intern/diff/D36464797/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77706
Approved by: https://github.com/pritamdamania87, https://github.com/wanchaol
