mtd: ubi, ubifs debug: Use pr_debug instead of pr_crit

Before printk.h was introduced and MTDDEBUG was removed,
pr_crit() was calling MTDDEBUG(), which was since then
replaced by the current pr_debug().

pr_debug is more appropriate here.

Signed-off-by: Eran Matityahu <eran.m@variscite.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h
index d853520..2c2faaf 100644
--- a/drivers/mtd/ubi/debug.h
+++ b/drivers/mtd/ubi/debug.h
@@ -29,7 +29,7 @@
 #else
 #define ubi_assert(expr)  do {                                               \
 	if (unlikely(!(expr))) {                                             \
-		pr_crit("UBI assert failed in %s at %u\n",                   \
+		pr_debug("UBI assert failed in %s at %u\n",                  \
 		       __func__, __LINE__);                                  \
 		dump_stack();                                                \
 	}                                                                    \
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index bad0c67f..5f6e127 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -167,7 +167,7 @@
 #else
 #define ubifs_assert(expr) do {                                                \
 	if (unlikely(!(expr))) {                                               \
-		pr_crit("UBIFS assert failed in %s at %u\n",                   \
+		pr_debug("UBIFS assert failed in %s at %u\n",                  \
 		       __func__, __LINE__);                                    \
 		dump_stack();                                                  \
 	}                                                                      \
@@ -176,7 +176,7 @@
 #define ubifs_assert_cmt_locked(c) do {                                        \
 	if (unlikely(down_write_trylock(&(c)->commit_sem))) {                  \
 		up_write(&(c)->commit_sem);                                    \
-		pr_crit("commit lock is not locked!\n");                       \
+		pr_debug("commit lock is not locked!\n");                      \
 		ubifs_assert(0);                                               \
 	}                                                                      \
 } while (0)