reset: scmi: define LOG_CATEGORY

Define LOG_CATEGORY to allow filtering with log command.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

drivers/reset/reset-scmi.c

@@ -2,6 +2,9 @@
 /*
  * Copyright (C) 2019-2020 Linaro Limited
  */
+
+#define LOG_CATEGORY UCLASS_RESET
+
 #include <common.h>
 #include <dm.h>
 #include <errno.h>