cmake: LLVM LLD minimum version 14.0.0

Fixes: #35671

Add minimal version required for LLVM LLD linker.
Linking fails with older LLVM LLD, such as v10.0.0.

LLVM v14.0.0 was released in 2022, and latest LLVM is v17.0.1.
Zephyr currently doesn't have a strict minimum version of LLVM
specified, but based on LLVM development and known issues on older
releases, then a minimum version of v14.0.0 has been chosen in this
commit.

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