ubispl: introduce separate CONFIG_UBI_SPL_SILENCE_MSG

This allows to silence ubi and ubispl individually.

Signed-off-by: Markus Klotzbuecher <markus.klotzbuecher@kistler.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Kyungmin Park <kmpark@infradead.org>
diff --git a/drivers/mtd/ubispl/ubispl.h b/drivers/mtd/ubispl/ubispl.h
index bcc376c..b7cb7fc 100644
--- a/drivers/mtd/ubispl/ubispl.h
+++ b/drivers/mtd/ubispl/ubispl.h
@@ -129,7 +129,7 @@
 #define ubi_dbg(fmt, ...)
 #endif
 
-#ifdef CONFIG_UBI_SILENCE_MSG
+#ifdef CONFIG_UBI_SPL_SILENCE_MSG
 #define ubi_msg(fmt, ...)
 #else
 #define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)