fs/ufs: convert printk to pr_foo()

Use current logging functions.

- no level printk under CONFIG_UFS_DEBUG converted to pr_debug

- no level printk elsewhere converted to pr_err

- add DDEBUG flag in Makefile

- coalesce formats
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/ufs/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_UFS_FS) += ufs.o
 
 ufs-objs := balloc.o cylinder.o dir.o file.o ialloc.o inode.o \
 	    namei.o super.o symlink.o truncate.o util.o
+ccflags-$(CONFIG_UFS_DEBUG)    += -DDEBUG