jffs2: Use pr_fmt and remove jffs: from formats

Use pr_fmt to prefix KBUILD_MODNAME to appropriate logging messages.

Remove now unnecessary internal prefixes from formats.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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