* config/arm/arm.h (EMIT_EABI_ATTRIBUTE): New macro.  Used to
	emit a .eabi_attribute assembler directive, possibly with a
	comment attached.
	* config/arm/arm.c (arm_file_start): Use the new macro.
	* config/arm/arm-c.c (arm_output_c_attributes): Likewise.

From-SVN: r179844