re PR libgcc/61152 (Missing GCC Runtime Library Exception in some files that are included in libgcc)

	PR libgcc/61152
	* config/arm/arm.h (License): Add note to COPYING.RUNTIME.
	* config/arm/arm-cores.def (License): Same.
	* config/arm/arm-opts.h (License): Same.
	* config/arm/aout.h (License): Same.
	* config/arm/bpabi.h (License): Same.
	* config/arm/elf.h (License): Same.
	* config/arm/linux-elf.h (License): Same.
	* config/arm/linux-gas.h (License): Same.
	* config/arm/netbsd-elf.h (License): Same.
	* config/arm/uclinux-eabi.h (License): Same.
	* config/arm/uclinux-elf.h (License): Same.
	* config/arm/vxworks.h (License): Same.

From-SVN: r210969