Add aarch64-specific --no-apply-dynamic-relocs option.

Add aarch64-specific --no-apply-dynamic-relocs option.

With --no-apply-dynamic-relocs on aarch64 targets, gold will not apply
link-time values for absolute relocations that become dynamic relocations.
This provides a workaround for broken Android dynamic linkers that use
the link-time value as an extra addend to the relocation.

gold/
	PR gold/19163
	* aarch64.cc (Target_aarch64::Relocate::relocate): Don't apply
	certain relocations if --no-apply-dynamic-relocs is set.
	* options.h (--apply-dynamic-relocs): New aarch64-specific option.