cmake: add linker_libraries.cmake for Cadence Xtensa linker

Follow-up: #78320

Create linker_libraries.cmake for the Cadence Xtensa xt-ld linker to
ensure correct linking of runtime and C libraries as well as correct
link order.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>