[Patch testsuite patch 10/17] Add options for floatN when checking effective target...

[Patch testsuite patch 10/17] Add options for floatN when checking effective target for support

gcc/testsuite/

	* lib/target-supports.exp (check_effective_target_float16): Add
	options for _Float16.
	(check_effective_target_float32): Add options for _Float32.
	(check_effective_target_float64): Add options for _Float64.
	(check_effective_target_float128): Add options for _Float128.
	(check_effective_target_float32x): Add options for _Float32x.
	(check_effective_target_float64x): Add options for _Float64x.
	(check_effective_target_float128x): Add options for _Float128x.

From-SVN: r242780