* gas/config/tc-avr.c: Change ISA for devices with USB support to
	AVR_ISA_XMEGAU

	* include/opcode/avr.h: Rename AVR_ISA_XCH to AVR_ISA_RMW. Remove
	from AVR_ISA_XMEGA and add new AVR_ISA_XMEGAU
2013-06-03  Joey Ye  <joey.ye@arm.com>

	* libc/machine/arm/Makefile.am (MEMCPY_DEP): New define.
	($(lpfx)memcpy.o, $(lpfx)memcpy.obj): Depend on MEMCPY_DEP.
	* libc/machine/arm/Makefile.in: Regenerated.
	* newlib/libc/machine/arm/memcpy-stub.c: Exclude armv7-m/armv7e-m.
	* newlib/libc/machine/arm/memcpy-armv7m.S: New.
	* newlib/libc/machine/arm/memcpy.S: Replace with wrapper code.  Old
	code moved to ...
	* newlib/libc/machine/arm/memcpy-armv7a.S: ... here.  Remove
	redundant architecture check.