fs/jffs2/: make 2 functions static

This patch makes two needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

diff --cc fs/jffs2/malloc.c
Simple merge

diff --cc fs/jffs2/nodelist.h
Simple merge

diff --cc fs/jffs2/scan.c
Simple merge