add OpenMP for LTS #17370

Job	Run time
Build without LCAO	4m 57s
Build with Intel toolchain	7m 16s
Build extra components with Intel toolchain	14m 56s
Build with CUDA support	16m 14s
Build with GNU toolchain	8m 45s
Build extra components with GNU toolchain	13m 11s
Build without LCAO and MPI	3m 47s
Build without ELPA	8m 10s
Build without MPI	6m 15s
	1h 23m 31s

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