[1/4] ARMv8.2-A FP16 testsuite selector

[1/4] ARMv8.2-A FP16 testsuite selector

gcc/testsuite/

	* target-supports.exp (add_options_for_arm_v8_2a_fp16_scalar): Mention
	AArch64 support.
	(add_options_for_arm_v8_2a_fp16_neon): Likewise.
	(check_effective_target_arm_v8_2a_fp16_scalar_ok_nocache): Support
	AArch64 targets.
	(check_effective_target_arm_v8_2a_fp16_neon_ok_nocache): Support
	AArch64 targets.
	(check_effective_target_arm_v8_2a_fp16_scalar_hw): Support AArch64
	targets.
	(check_effective_target_arm_v8_2a_fp16_neon_hw): Likewise.

From-SVN: r240921