log: Add a new log category for the console

Add a new category which covers the console, including the stdio
drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/console.c

@@ -4,6 +4,8 @@
  * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
  */
 
+#define LOG_CATEGORY	LOGC_CONSOLE
+
 #include <console.h>
 #include <debug_uart.h>
 #include <display_options.h>

common/log.c

@@ -31,6 +31,7 @@ static const char *const log_cat_name[] = {
 	"event",
 	"fs",
 	"expo",
+	"console",
 };
 
 _Static_assert(ARRAY_SIZE(log_cat_name) == LOGC_COUNT - LOGC_NONE,

include/log.h

@@ -104,6 +104,8 @@ enum log_category_t {
 	LOGC_FS,
 	/** @LOGC_EXPO: Related to expo handling */
 	LOGC_EXPO,
+	/** @LOGC_CONSOLE: Related to the console and stdio */
+	LOGC_CONSOLE,
 	/** @LOGC_COUNT: Number of log categories */
 	LOGC_COUNT,
 	/** @LOGC_END: Sentinel value for lists of log categories */