On cris we got a build error,

kernel/fork.c:267: error: implicit declaration of function
'alloc_thread_info_node'

this is due to that we renamed alloc_thread_info() to alloc_thread_info_node().

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>

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