[OpenMP] Add new worksharing definitions into device RTL

This path defines the newly added `__kmpc_disitrute_static_init`
functions in the device runtime library. These functions are currently
exact copies of the current worksharing method but can be tuned later.

Depends on D110429

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D110430

GitOrigin-RevId: 74d622dea450da4b85383aa4b1758b902ef906a6
3 files changed