[Reland] Add BUILD_LAZY_CUDA_LINALG option (#73447)
Summary:
When enabled, it will generate `torch_cuda_linalg` library, which would depend on cusolve and magma and registers dynamic bindings to it from LinearAlgebraStubs
Avoid symbol clashes that can result in infinite recursion by moving all symbols in the library to its own namespace.
Add checks that should prevent calling self in recursion to `LinearAlgebraStubs.cpp`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73447
Reviewed By: albanD
Differential Revision: D34538827
Pulled By: malfet
fbshipit-source-id: f2535b471d3524768a84b2e169b6aa24c26c03bf
(cherry picked from commit 4ec24b079c861c1122f0fa86e280b977c3c2f7ac)
