Update.

Update.

	* sysdeps/sh/Dist: Removed.  There is no ieee754.h file.
	* sysdeps/sh/sh3/dl-machine.h: Moved to...
	* sysdeps/sh/dl-machine.h: ...here.  New file.
	* sysdeps/sh/sh4/dl-machine.h: Simply define KERNEL_MATH_EMULATION
	and include generic SH version.
	* sysdeps/sh/sh3/bits/endian.h: Move to...
	* sysdeps/sh/bits/endian.h: ...here.  New file.
	* sysdeps/sh/sh4/bits/endian.h: Removed.
	* sysdeps/sh/sh3/bits/huge_val.h: Move to...
	* sysdeps/sh/bits/huge_val.h: ...here.  New file.
	* sysdeps/sh/sh4/bits/huge_val.h: Removed.

	GAS which warns about changing section attributes.
	Proposed by Nick Clifton <nickc@redhat.com>.
	* sysdeps/sh/elf/initfini.c: New file.
	* sysdeps/sh/elf/start.S: New file.
	* sysdeps/sh/sys/ucontext.h: New file.