[PATCH] ppc32: remove use of asm/segment.h

Removed ppc32 architecture specific users of asm/segment.h and
asm-ppc/segment.h itself

Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>