ld: Keep PREINIT_ARRAY/INIT_ARRAY/FINI_ARRAY sections for -r --gc-sections

ld: Keep PREINIT_ARRAY/INIT_ARRAY/FINI_ARRAY sections for -r --gc-sections

We must keep all PREINIT_ARRAY, INIT_ARRAY as well as FINI_ARRAY sections
for ld -r --gc-sections.

bfd/

	PR ld/22677
	* elflink.c (bfd_elf_gc_sections): Keep all PREINIT_ARRAY,
	INIT_ARRAY as well as FINI_ARRAY sections for ld -r --gc-sections.

ld/

	PR ld/22677
	* scripttempl/elf.sc (PREINIT_ARRAY): New.
	Don't add .preinit_array for ld -r.
	* testsuite/ld-elf/pr22677.d: New file.
	* testsuite/ld-elf/pr22677.s: Likewise.