[PATCH 4/5] ARM: Cleanup fenv implementation

[Wilco]

Hi,

This is a series of patches which improves the ARM fenv implementation. Improve rounding mode check
in libc_fesetround_vfp and libc_feholdsetround_vfp so it ignores out of range values.

ChangeLog:
2014-06-10  Wilco  <wdijkstr@arm.com>

	* sysdeps/arm/fenv_private.h (libc_fesetround_vfp)
	(libc_feholdsetround_vfp): Improve rounding mode check.
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