x86-64: Check relocations with -z nocopyreloc

x86-64: Check relocations with -z nocopyreloc

On x86-64, when -z nocopyreloc is used to build executable, relocations
may overflow at run-time or may not be resolved without PIC.  This patch
checks these conditions and issues an error with suggestion for -fPIC.

bfd/

	PR ld/22001
	* elf64-x86-64.c (elf_x86_64_relocate_section): Check for
	R_X86_64_PC32 relocation run-time overflow and unresolvable
	R_X86_64_32S relocation with -z nocopyreloc.

ld/

	PR ld/22001
	* testsuite/ld-i386/i386.exp: Run -z nocopyreloc tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* ld/testsuite/ld-i386/pr22001-1a.c: New file.
	* ld/testsuite/ld-i386/pr22001-1b.c: Likewise.
	* ld/testsuite/ld-i386/pr22001-1c.S: Likewise.
	* ld/testsuite/ld-x86-64/pr22001-1a.c: Likewise.
	* ld/testsuite/ld-x86-64/pr22001-1a.err: Likewise.
	* ld/testsuite/ld-x86-64/pr22001-1b.c: Likewise.
	* ld/testsuite/ld-x86-64/pr22001-1b.err: Likewise.
	* ld/testsuite/ld-x86-64/pr22001-1c.c: Likewise.