log: Fix up Kconfig log level names

The log level numbers in the Kconfig are not actually correct. Fix them
and also add a missing space in the header-file comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/log.h b/include/log.h
index d7f6471..33e99ab 100644
--- a/include/log.h
+++ b/include/log.h
@@ -14,7 +14,7 @@
 
 /** Log levels supported, ranging from most to least important */
 enum log_level_t {
-	LOGL_EMERG = 0,		/*U-Boot is unstable */
+	LOGL_EMERG = 0,		/* U-Boot is unstable */
 	LOGL_ALERT,		/* Action must be taken immediately */
 	LOGL_CRIT,		/* Critical conditions */
 	LOGL_ERR,		/* Error that prevents something from working */